| 单词 | melting point |
| 例句 | “It has the same melting point as gold, the same weight and malleability. If it’s not identical to gold in every way, the difference has eluded us. Have it tested if you like.” Six of Crows 2015-09-29T00:00:00Z “It has a high melting point and good tensile strength too. Expensive stuff though. Take some time to drill and shape. C’mon.” October Sky 1999-04-01T00:00:00Z As the first Wonka Bars were shipped across the country, many of them turned to mush; their melting point was too low. Chocolate Aplenty, but Nary a Wonka Bar to Be Found 2017-07-03T04:00:00Z The flavors open up right away, in part because Misi serves them just below the melting point and in part because the ingredients are used prodigally. Misi Is Much More Than a Pasta Restaurant 2018-11-13T05:00:00Z Its low melting point will lend a pseudo-tempered-chocolate snap to your coating, especially after a stint in the fridge. How to make chocolate-covered strawberries 2020-01-25T05:00:00Z This hard fat’s high melting point means that the raw dough has time to solidify around the pellets before they dissolve, leaving a honeycomb of air pockets in their wake. How to cook the perfect spotted dick 2017-05-05T04:00:00Z Most vegan butters are spreadable because of the low melting points of their oil base — usually palm, coconut, canola, or olive. We tasted 10 vegan butters in the name of science 2022-01-04T05:00:00Z The melting point of each color of glass is different, and minerals are what give colored glass its appearance and make it behave different ways when it’s heated. Seattle Glass Monuments helps craft brighter memories 2014-05-03T23:24:42Z Historians will surely look at this interactive, multimedia, multichannel, cross platform extravaganza as the melting point of private and public. Style: We're All Invited to the Wedding! 2011-04-25T12:00:59Z More recently, in 2015, researchers at Penn State’s College of Agricultural Sciences announced their discovery of the gene that determines cocoa butter’s melting point. Unmeltable chocolate and bean-to-bar: A cocoa expert highlights 3 sweet trends 2018-12-30T05:00:00Z If you keep heating them, though, their vibrations will eventually reach a critical value – their melting point – at which they have enough energy to break those bonds and jump around quite chaotically, becoming liquid. Mark Miodownik: an obsession with materials 2013-05-24T15:53:00Z The kitchen seasons its version, based on halloumi, the Middle Eastern cheese with a high melting point, with fresh oregano and garlic oil. Review | At Ruta del Vino, refreshing takes on Latin food — with nary a small plate in sight 2017-04-03T04:00:00Z After heeding an order to stop hurling light bulbs at a brick wall, he decided to light matches to test the melting point of the sprinkler heads. Arthur Anderson, Voice of Lucky Charms Cereal’s Leprechaun, Dies at 93 2016-04-12T04:00:00Z In their research, the authors dissolved high melting point nickel and tin in a gallium based liquid metal with a melting point of only 30 degrees centigrade. Liquid metals shake up century-old chemical engineering processes 2023-11-09T05:00:00Z Amanchukwu's group is continuing to work on salt compositions with even lower melting points, with the final goal of a powerful lithium-metal battery that will operate safely at room temperature. Advances in lithium-metal batteries, paving the way for safer, more powerful devices 2023-11-09T05:00:00Z Some theories suggest these zones could be remnants of magma from 4.5 billion years ago, while others believe they result from tectonic plates that have sunk into the Earth's interior, spreading low melting point material. Researchers probe molten rock to crack Earth's deepest secrets 2023-10-23T04:00:00Z "The one we used for this project has a lower melting point than table salt, low vapor pressure, and is organic." Scientists unveil fire-safe fuel 2023-09-28T04:00:00Z Warm enough, in fact, that one might not need to dig very deep to reach ambient temperatures above the melting point of water. NASA’s Uranus Mission Is Running Out of Time 2023-03-30T04:00:00Z “If the temperature of the existing snow is higher than it would otherwise be, there is less heat required to bring it to the melting point.” Greenland temperatures surge up to 50 degrees above normal, setting records 2023-03-07T05:00:00Z The scientists behind the study, who published their findings Wednesday in the journal Matter, created the robot using a composite of metals with a low melting point. Scientists invented a melting liquid robot that can escape from a cage 2023-01-26T05:00:00Z As well as having a higher melting point, it can be easily dispersed through the product. How to add 'sizzle' to meat-free products 2023-01-30T05:00:00Z A similar story played out on the planet’s other side, with ice around the North Pole nearing or reaching its melting point at a time once considered unthinkably early. 2022 tied for the fifth-hottest year on record, NASA says 2023-01-12T05:00:00Z The base is mostly silica, with a few “fluxes,” or substances that lower the melting point of the silica, she adds. Uranium glass collectibles glow. But don’t worry, they’re not toxic. 2022-10-11T04:00:00Z When the pressure dropped, the change lowered the mantle’s melting point, causing the rock to form massive quantities of magma. The Milky Way’s Spiral Arms May Have Carved Earth’s Continents 2022-09-30T04:00:00Z Similarly, once baked goods go in the oven, the difference in melting points is equally apparent. Can you substitute butter for shortening? Here’s what to consider. 2022-04-25T04:00:00Z The mainstay has been coconut oil but, compared to animal fat, this has a lower melting point, or the point at which fat turns from solid to liquid. How to add 'sizzle' to meat-free products 2023-01-30T05:00:00Z “For the first time on record, temperatures at summit exceeded the melting point in September, on the afternoon of Sept. 3.” For first time on record, Greenland saw extensive melting in September 2022-09-06T04:00:00Z If it is sufficient to take you past a boiling or melting point, you should then go back and do the problem in steps—temperature change, phase change, subsequent temperature change, and so on. College Physics for AP Courses 2015-08-12T00:00:00Z An ice cube is warmed to near its melting point. Chemistry 2019-02-14T00:00:00Z In addition to the melting point, there’s a least one more major difference in how fat and shortening perform during creaming. Can you substitute butter for shortening? Here’s what to consider. 2022-04-25T04:00:00Z If you've mashed your way through a vegan burger that started off juicy, but then turned to sawdust, the melting point may be the culprit. How to add 'sizzle' to meat-free products 2023-01-30T05:00:00Z Most of the asteroids and comets, as well as the smallest moons, were probably never heated to the melting point. Astronomy 2016-10-13T00:00:00Z The mean melting point of the two alloys is to be compared. Introductory Statistics 2013-09-19T00:00:00Z This form is stable from 96 °C to the melting point, 119 °C. At room temperature, it gradually reverts to the rhombic form. Chemistry 2019-02-14T00:00:00Z If a rock is buried to a great depth and encounters temperatures that are close to its melting point, it will partially melt. Physical Geology 2015-01-01T00:00:00Z The green line is called the solidus, the melting point temperature of the rock at that pressure. An Introduction to Geology 2017-01-01T00:00:00Z In order for a rocky planet to differentiate, it must be heated to the melting point of rocks, which is typically more than 1300 K. Astronomy 2016-10-13T00:00:00Z It is believed that Alloy Zeta has a different melting point. Introductory Statistics 2013-09-19T00:00:00Z In PbCl2, the bonding is ionic, as indicated by its melting point of 501 °C. In PbCl4, the bonding is covalent, as evidenced by it being an unstable liquid at room temperature. Chemistry 2019-02-14T00:00:00Z Our understanding of the temperature gradient comes from seismic wave information and knowledge of the melting points of Earth’s materials. Physical Geology 2015-01-01T00:00:00Z Graph D and label Z show a subduction zone, where an addition of volatiles lowers the melting point, shifting the solidus to the left of the geothermal gradient. An Introduction to Geology 2017-01-01T00:00:00Z Circling its star only once every 18 hours, the planet has blast furnace surface temperatures above the melting point of most types of rocks. James Webb Space Telescope Set to Study Two Strange Super-Earths 2022-06-03T04:00:00Z The data support that the melting point for Alloy Zeta is different from the melting point of Alloy Gamma. Introductory Statistics 2013-09-19T00:00:00Z Impurities may be removed by the addition of a compound that forms a slag—a substance with a low melting point that can be readily separated from the molten metal. Chemistry 2019-02-14T00:00:00Z This region of the mantle is known as the low-velocity zone because seismic waves are slowed within rock that is near its melting point, and of course it is also known as the asthenosphere. Physical Geology 2015-01-01T00:00:00Z Where the convection currents cause mantle material to rise, the pressure decreases, which causes the melting point to drop. An Introduction to Geology 2017-01-01T00:00:00Z The models also find that pure iron grows soft when it sits at 98% of its melting point, as it may throughout much of the inner core. Scientists are probing the secrets of Earth’s inner core—and how it saved life on our planet 2022-03-30T04:00:00Z Temperatures near where the ice shelf broke off began rising above the melting point right around the time it separated from the continent. Ice shelf bigger than New York City breaks off eastern Antarctica 2022-03-26T04:00:00Z Many ionic crystals also have high melting points. Chemistry 2019-02-14T00:00:00Z This could happen if nuclear fuel exceeded its melting point and radioactive materials broke through the containment facilities. Nuclear plant: How dangerous was the attack and what is the risk in Ukraine? 2022-03-04T05:00:00Z Temperatures were very high close to the center, only allowing condensation of metals and silicate minerals with high melting points. An Introduction to Geology 2017-01-01T00:00:00Z That was a surprise because water lowers the melting point for rock and in its absence, eruptions are more difficult. China’s Moon rocks reveal puzzlingly persistent volcanic eruptions 2021-10-19T04:00:00Z One step was to find bridgmanite’s melting point and other traits. New Mexico scientists among team looking at other planets 2021-03-07T05:00:00Z Because covalent bonds are relatively strong, covalent network solids are typically characterized by hardness, strength, and high melting points. Chemistry 2019-02-14T00:00:00Z The ice is still frozen, but is closer to its melting point, so it takes less heat to trigger an avalanche than some decades ago, added Azam. Himalayan glacier disaster highlights climate change risks 2021-02-09T05:00:00Z As minerals with lower melting points turn into liquid magma, those with higher melting points remain as solid crystals. An Introduction to Geology 2017-01-01T00:00:00Z The type of sugar and protein, along with the temperature to which the sugars are heated, are variables that alter the texture, melting point, bounciness and shelf stability of the final candy. Squishy, sweet homemade marshmallows will elevate your s’mores and hot chocolate 2021-01-12T05:00:00Z This may seem like an absurd question, given that the surface temperature of Venus is above the melting point of lead. Opinion | Venus may hold the answers about life we’ve been looking for 2020-09-14T04:00:00Z The melting points of the metals vary widely. Chemistry 2019-02-14T00:00:00Z The sensation that comes with being dominated in a lopsided three-game series reached a melting point for the last-place Orioles in the middle of the fifth inning. Yanks Bid Fond Adieu to Baltimore With Another Drubbing 2019-08-07T04:00:00Z When peridotite begins to melt, the silica- rich portions melt first due to their lower melting point. An Introduction to Geology 2017-01-01T00:00:00Z Adviser Kellyanne Conway told Fox News Sunday the border was at “melting point” and said Trump’s threat “certainly is not a bluff. You can take the president seriously.” Mulvaney: only 'something dramatic' will stop Trump closing Mexico border 2019-03-31T04:00:00Z White House adviser Kellyanne Conway told “Fox News Sunday” that the situation at the border was at “melting point” and said the president was serious in his threat. Trump aides repeat threat to shut down U.S.-Mexico border on... 2019-03-31T04:00:00Z Any sample of sucrose also has the same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. Chemistry 2019-02-14T00:00:00Z It was later estimated that the interior temperature reached at least twenty-four hundred degrees Fahrenheit — the melting point of stainless steel, found melted inside. The inside story of the Apollo 1 cabin fire 2019-03-24T04:00:00Z The volatiles dissolve into the overlying asthenospheric mantle and decrease its melting point. An Introduction to Geology 2017-01-01T00:00:00Z It functions as a natural preservative in processed foods, and actually does raise the melting point of ice-cream. How the world got hooked on palm oil 2019-02-19T05:00:00Z Relativistic effects are already understood — they are responsible for the yellowish colour of gold and the low melting point of mercury, for example. Extreme chemistry: experiments at the edge of the periodic table 2019-01-29T05:00:00Z The strengths of the attractive forces between the units present in different crystals vary widely, as indicated by the melting points of the crystals. Chemistry 2019-02-14T00:00:00Z Computer models indicate that temperatures would be about minus-90 Fahrenheit — far colder than the melting point of water. A Watery Lake Is Detected on Mars, Raising the Potential for Alien Life 2018-07-25T04:00:00Z In this situation the applied pressure and temperature have not changed, the mantle’s melting point has been lowered by the addition of volatile substances. An Introduction to Geology 2017-01-01T00:00:00Z In the dead of winter, “the temperature warmed to the melting point as an enormous storm pumped an intense pulse of heat through the Greenland Sea” as temperatures rose to as high as 35 degrees. Analysis | The Energy 202: FEMA contract cobbled together from Internet sources, senators say 2018-02-27T05:00:00Z Tungsten has the highest melting point of any metal, at about 6,192 degrees Fahrenheit, making it useful in light bulbs. Donald Trump, Hurricane Maria, Sean Spicer: Your Tuesday Briefing 2017-09-19T04:00:00Z The temperature at which the solid and liquid phases of a given substance are in equilibrium is called the melting point of the solid or the freezing point of the liquid. Chemistry 2019-02-14T00:00:00Z Tungsten has the highest melting point of any metal, at 3,422 degrees Celsius, making it useful in light bulbs. United Nations, Hurricane Maria, Martin Schulz: Your Tuesday Briefing 2017-09-19T04:00:00Z When mixed with asthenospheric material above the plate, the volatile lower the melting point of the mantle wedge, and through a process called flux melting it becomes liquid magma. An Introduction to Geology 2017-01-01T00:00:00Z Ascot Resources Ltd. plans to search for copper, gold and molybdenum, a compound commonly used in steel alloys due to its high melting point. US officials allow Canadian company’s exploratory mining 2017-08-24T04:00:00Z The American melting point is simmering and ready to boil. Georgia editorial roundup 2017-08-23T04:00:00Z The enthalpy of fusion and the melting point of a crystalline solid depend on the strength of the attractive forces between the units present in the crystal. Chemistry 2019-02-14T00:00:00Z Kohler used pewter for its low melting point, which is around 400 degrees. Forget Super Soakers — check out this molten metal squirt gun 2017-07-29T04:00:00Z The fires can burn up to 1,100 degrees Fahrenheit, close to the melting point of the aluminum used in aircraft construction. INSIDE WASHINGTON: Push to avert plane battery fires stalls 2017-03-13T04:00:00Z Temperatures reached the melting point at the North Pole in December. A winter of blazing discontent continues in the arctic 2017-02-10T05:00:00Z Temperatures around the North Pole surged close to melting point on Thursday as a freak blast of warm air blanketed an Arctic region usually deep frozen in mid-winter darkness, scientists said. Temperatures around North Pole leap close to melting point 2016-12-22T05:00:00Z Molecules with weak attractive forces form crystals with low melting points. Chemistry 2019-02-14T00:00:00Z During 2015’s final days, the temperature near the Pole spiked to the melting point thanks to a massive storm that pumped warm air into the region. The North Pole is an insane 36 degrees warmer than normal as winter descends 2016-11-17T05:00:00Z And this maybe also applies to the season one task of raising the ambient temperature of a data center above the melting point of magnetic tape? The Mr. Robot Hack Report: Ransomware and owning the Smart Home 2016-07-13T04:00:00Z It’s also the cheapest vegetable oil to produce and has a high melting point, making products that contain it smooth and easily spreadable: useful qualities for both margarine and lotion. Almost everything you buy, from cereal to mascara, is killing the rain forest 2016-03-11T05:00:00Z Sub-tropical air pulled there is now sitting over Iceland, and at what should be a deeply sub-zero North Pole, temperatures on Wednesday appeared to reach the melting point — more than 50 degrees above normal. Cataclysms from the North Pole to South America 2015-12-30T05:00:00Z Snow and ice sublime at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. Chemistry 2019-02-14T00:00:00Z It’s “melting point and meeting point” between East and West, says author—also the birthplace of surfing and test site for the Atomic bomb. Why the Pacific Is the Ocean of Tomorrow 2015-10-28T04:00:00Z “It has the highest melting point of all the metals, and combined with carbon it is hard like diamond,” he says. Marketers Use Metal to Talk Tough 2015-07-29T04:00:00Z Its extreme hardness and high melting point make it a difficult metal for jewelers to work, so pure rhodium jewelry is highly unusual. Jewelers back to black with rhodium, ruthenium 2015-05-21T04:00:00Z That's close to the melting point of aluminum, about 1,200 degrees. Aircraft makers urge ban on lithium battery shipments 2015-03-10T04:00:00Z Water is an unusual substance in this regard, as most substances exhibit an increase in melting point with increasing pressure. Chemistry 2019-02-14T00:00:00Z It’s a melting point and a meeting place; the completion of the full circle of human migration; a bewildering assortment of racial types and religions. Why the Pacific Is the Ocean of Tomorrow 2015-10-28T04:00:00Z Today, commercial reactors in the United States all use fuel wrapped in metal, so they cannot run hotter than the metal’s melting point. Betting on the Need, Scientists Work on Lighter, Cleaner Nuclear Energy 2014-12-15T05:00:00Z Welding is the joining together of materials by causing surfaces to reach their melting points and uniting them by hammering, compressing or otherwise. Female welders fight misconceptions 2014-11-15T05:00:00Z And once the ore is out of the ground, thanks to its low melting point, the lead can easily be separated out in an open fire. The fatal attraction of lead 2014-10-11T04:00:00Z The boiling points and melting points of the noble gases are extremely low relative to those of other substances of comparable atomic or molecular masses. Chemistry 2019-02-14T00:00:00Z As well as being incredibly dense it is also incredibly hard and has the highest melting point of all the elements at 3,422C. The perfect metal for bullets and missiles 2014-07-11T04:00:00Z The diving slab releases water that percolates upwards, lowering the melting point of the rock and allowing magma to form and fuel volcanoes above. Survey probes volcano’s depths 2014-07-07T04:00:00Z That is because most of the mountain glaciers lie in areas where temperatures are closer to the melting point than they are in Greenland or Antarctica, and so slight warming tips them to melting. The Melting Isn’t Glacial 2014-05-19T04:00:00Z Surface diffusion is frequently observed at temperatures appreciably below the crystal's melting point, implying a role for enhanced surface mobility in the process. [Perspective] The Surface Mobility of Glasses 2014-02-27T19:25:55.910Z Thanks to its low melting point, this relatively abundant metal was one of the first to be smelted - by placing a rock into a fire. What the world owes a dull grey metal 2014-02-01T22:36:57Z The experimentally determined maximum melting point of 3570 kelvin suggests that some phases typically thought to lose stability in the lowermost mantle, such as MgSiO-rich post-perovskite, may be more widely distributed than expected. [Report] Low Core-Mantle Boundary Temperature Inferred from the Solidus of Pyrolite 2014-01-30T19:26:05.902Z Partially hydrogenated oils, the primary source of the fats in foods, have long been prized by microwavable popcorn companies for their high melting point. U.S. popcorn makers could face long, expensive road to lose trans fats 2013-11-09T01:26:51Z The searing heat of 2,200C is in fact 700C hotter than the melting point of the components in the combustion chamber - including the turbine blades that are driven by this fast-expanding gas. A350 marks new phase in aero-engines 2013-06-14T09:23:04Z Helium’s low boiling and melting points, the lowest of any element, make it ideal for cryogenic applications. News Analysis: Up, Up and Away 2013-05-25T13:03:39Z Inside the oven a 30cm-deep basin of powder is heated to just below its melting point; then a laser heats specific points over a layer just 0.1mm deep, melting and fusing the powder. Is 3D printing about to hit the mainstream? 2013-04-30T18:48:48Z Shoot the bullet that fast, and if all the kinetic energy went into heating the bullet, you’d melt it, or at least bring it to the melting point. Under What Conditions Can A Bullet From Your Gun Circle The Planet And Hit You In The Back? 2013-04-09T15:03:35Z Ideally we would want tantalizing features of the molecule – perhaps an infrared spectrum, maybe a melting point, even a few steps of the enabling reaction – to somehow fall into the hands of the enemy. Virtual shock 2013-01-24T00:15:00.210Z Most of the first wall would be coated with beryllium, which is the least plasma-polluting metal but has a low melting point if it comes into contact with the plasma. How to Line a Thermonuclear Reactor 2012-08-16T20:51:00Z On the other hand, a substance like paraffin wax,128 which contracts in solidifying, would have its melting point raised by increase of pressure and lowered by a diminution of pressure. Lord Kelvin An account of his scientific life and work 2012-04-06T02:00:32.097Z This process is described as consisting in the application of superheated steam to the glass, brought up to a temperature near to its melting point. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z These 2011 experiments include a look at radiation shielding, as well as melting points of materials in space. Attention Teachers: If You Don't Apply to This Workshop, Your Experiment Won't Fly to Space 2012-02-17T16:00:17Z In this way the mercury in the thermometer was cooled down to the melting point without commencing to solidify, and the temperature was found to be between 39° and 40° below Fahrenheit's zero. Heroes of Science: Physicists 2012-01-17T03:00:17Z The lower the melting point of the powdered glass the more easily it is fused. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 1 "Gichtel, Johann" to "Glory" 2012-01-11T03:00:20.463Z The meldometer shown is an instrument for facilitating the identification of small quantities of minerals by comparative observations on their melting points, and for observing the phenomena of their fusion and ebullition. Scientific American Supplement, No. 648, June 2, 1888. 2011-12-26T03:00:15.410Z Now alumina raises the melting point of any glass of which it is a constituent. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z This book is of utmost value, since the perplexing problems arising when metal is heated to a melting point are fully explained and the proper methods to overcome them shown. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This material can be a partial product from almost any cupellation where oxidation takes place below the melting point of the oxide. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z The alloy corresponding to the cryohydrate, possessing the lowest melting point, is called the eutectic alloy, as it is most easily cast and worked. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z These four materials escaped from the explosions to varying distances, given factors such as their mass and melting points. The worst nuclear plant accident in history: Live from Chernobyl 2011-03-15T12:15:07.357Z They isolated the gene that determines the melting point of chocolate as well. Observatory: Crossing the Finish Line for Cacao?s Genetic Map 2010-12-27T23:02:36Z Rise and fall of Dubai's real estate 27 Nov 2009: After decades of unprecedented growth and expansion Dubai's overheated economy is reaching its melting point. Dubai readies for first IPO in two years 2010-11-22T18:57:00Z In this case the brickdust probably acted merely as a vehicle for the absorption, and to lower the melting point of the mass and prevent fusion of the metal. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z By the addition of mercury to Darcet’s metal the melting point may be reduced so low as 45�. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Materials with the highest melting points solidified first and farthest down, creating a floor for copper, gold and other minerals, which cooled and crystallized in layers. Legendary U.S. Copper Prospector Has China as Biggest Customer 2010-11-04T23:08:00Z Unlike the permafrost on land, says Shakhova, soil under the sea floor is always hovering at close to the melting point because of its proximity to unfrozen seawater. More Warming Worries: Methane from the Arctic Permafrost 2010-03-04T21:30:00Z If, then, the pressure of forty feet of ice lower the melting point .0075� The Glaciers of the Alps Being a narrative of excursions and ascents, etc. In general the process was performed by "cementing" the disintegrated bullion with a paste and subjecting the mass to long-continued heat at a temperature under the melting point of the bullion. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z Substances which expand on freezing, like ice, have their freezing points lowered by increase of pressure; substances which expand on fusing, like wax, have their melting points raised by pressure. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z It liquefies when heated under pressure, and its melting point lies between 446� C. and 457� C. The vapour of arsenic is of a golden yellow colour, and has a garlic odour. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" Due to its high melting point, a much harder crust forms on the surface of a floating soap and in a greater proportion than on a settled soap during the settling. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Now, according to Mr. Thomson's theory and his brother's experiments, the melting point of ice is lowered .0075� The Glaciers of the Alps Being a narrative of excursions and ascents, etc. Make a scratch with a file, and touch it with the end of a very small piece of glass drawn out and heated at the tip to its melting point. The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame For the use of chemical and physical students A detail of first importance is the essential difference between the melting points of the objects to be brazed or soldered, and that of the solder used. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" It is a white crystalline solid of melting point 43 C.; it boils at 210� C., and it can be distilled without decomposition. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" With increased pressure the melting point is lowered or raised, depending on whether the substance contracts or expands in melting. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Indeed the unsoundness of ice at and near its melting point has been long known. The Glaciers of the Alps Being a narrative of excursions and ascents, etc. It should only be employed, therefore, when the low melting points of soda or lead glass would render them unsuitable for the purpose to which the finished apparatus is to be put. The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame For the use of chemical and physical students Its melting point being far, far above any heat likely outside of a Neptunian laboratory, it was as permanent as iron for their needs! The Secret of the Ninth Planet If now we apply heat to this ice the thermometer will gradually rise until it reaches the melting point at 32 degrees Fahrenheit, where it will stand until all the ice is melted. Nature's Miracles, Volume 1 Familiar Talks on Science—World-Building and Life. Earth, Air and Water. The phenomenon of double melting points has been observed in the case of a number of glycerides. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The osazones are generally more or less soluble in hot water, but on cooling they crystallize out in yellow crystalline masses each with definite melting point and crystalline form. The Chemistry of Plant Life The melting point of vitreous silica cannot be definitely stated. The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame For the use of chemical and physical students During this firing the pieces frequently went out of shape because of the excessive shrinkage of the material and its tendency to soften as it approached the melting point of the frit. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" A very interesting experiment may be performed with a block of ice by anyone when the ice is near the melting point. Nature's Miracles, Volume 1 Familiar Talks on Science—World-Building and Life. Earth, Air and Water. These components are crystalline and when separated in the pure state have definite melting points, although some exhibit the phenomenon of double melting point. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. It crystallizes out of solution in flat plates, which are orange-red by transmitted light, and greenish-blue by reflected light, and have a melting point of 168°. The Chemistry of Plant Life Considering the wide variations in the physical condition and melting points, the comparatively close agreement of the atomic heats of the metals at ordinary temperatures, known as Dulong and Petit’s Law, is very remarkable. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" It must have a much lower melting point than the steel of the engine so there would be no damage. The Ethical Engineer It melted a cylinder of the new Krieger alloy—melted it when its melting point is way higher than that of any rock that we've hit. Two Thousand Miles Below The range between the softening point and the final melting point varies greatly with the different fats and oils depending on their chemical components, the water associated with them, emulsification, etc. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. They form acetyl esters, or acetates, which can be separated from each other and identified by their crystal forms and melting points. The Chemistry of Plant Life The experienced battery man knows that by "lead burning" is meant the heating of lead to its melting point, so that two lead surfaces will weld together. The Automobile Storage Battery Its Care And Repair Such fillers are of high melting point and consequently solid at ordinary temperature. American Rural Highways Rawson, seated by the window, was looking at tables of comparative melting points. Two Thousand Miles Below Various methods have been devised to determine the so-called melting point of fats and oils. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Suppose, then, to resume our figure, we were to propose to ourselves the question, "How shall I know whether a body near the melting point has passed from the solid to the liquid state?" Memoranda Sacra To the connoisseur of well cured hams and bacon this low melting point is not a detriment but a distinct improvement. Agriculture in Virginia, 1607-1699 The presence of caffein in the sublimate is verified by observing its melting point, determined on a special heating stage used in connection with a microscope. All About Coffee She stood at the broad window of the main staircase watching the swift atoms of snow drift past, each one by itself a mere melting point, but, in their millions, mighty. A Modern Mercenary Therefore, the term melting point when applied to them requires further definition. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Its use in forming the glaze of ceramic products is also due to its low melting point. The Economic Aspect of Geology The acid was evidently a mixture, and had no definite melting point. Scientific American Supplement, No. 488, May 9, 1885 It includes, besides various other substances, several free fatty acids and their glycerides, the acids of low melting point being most abundant. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. We use Clarke's melter which, with adjustment of the flame, will keep the paraffin at a temperature slightly above the melting point and thus will not get too hot. Northern Nut Growers Association Report of the Proceedings at the 41st Annual Meeting Pleasant Valley, New York, August 28, 29 and 30, 1950 The lowering or raising of the melting point with pressure is very slight and ordinarily is not taken into consideration. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. QUESTION: Do you use paraffin of a particular melting point? Northern Nut Growers Association Report of the Proceedings at the 13th Annual Meeting Rochester, N.Y. September, 7, 8 and 9, 1922 This acid was proved to be oleic, by its saturating power and its melting point, which were fairly concordant with those of the pure acid. Scientific American Supplement, No. 488, May 9, 1885 We may then settle the question of obtaining paraffines which have a high melting point, by knowing that they may be obtained from any of the Standard Oil people. Northern Nut Growers Association Report of the Proceedings at the Fourteenth Annual Meeting Washington D.C. September 26, 27 and 28 1923 Having a high melting point, they are far more digestible than animal fats of any sort. Northern Nut Growers Association, Report of the Proceedings at the Seventh Annual Meeting Washington, D. C. September 8 and 9, 1916. Such a mixture has a constant melting point and because of this and also because both solid and liquid phases have the same composition, eutectic mixtures were formerly looked upon as compounds. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The following table gives the melting points, etc.: Elements of Plumbing The melting point is going down all the way, and they're all silvery metals. The Ultimate Weapon The subject for experiment then, for members of this audience, is that of finding some substance that may be added to give elasticity, but which will not change the melting point. Northern Nut Growers Association Report of the Proceedings at the Fourteenth Annual Meeting Washington D.C. September 26, 27 and 28 1923 Another method is to convert the substance into acetate, and take its melting point, cholesterol acetate melting at 114.3-114.8° The Handbook of Soap Manufacture A melting point is the temperature at which a solid substance assumes the liquid condition. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. And, "having come to this conclusion, it was easily foreseen that it would be possible to have solid ice at temperatures far above the ordinary melting point." Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. Tungsten, while it has a beautifully high melting point, is mostly open space, and a neutron just sails right through it, or any heavy atom. The Ultimate Weapon We may raise the melting point ten degrees, if we like, by the addition of the carnauba wax, which, however, is highly crystalline. Northern Nut Growers Association Report of the Proceedings at the Fourteenth Annual Meeting Washington D.C. September 26, 27 and 28 1923 The melting point of otto of rose is usually taken in a similar tube to the setting point, and is considered to be the point at which the last crystal disappears. The Handbook of Soap Manufacture If the solid is a pure substance in the crystalline condition the melting point is sharp and well defined for any given pressure. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Reflection of the sun's rays by the bright surface undoubtedly lowered the temperature to below the melting point of the paraffine. Northern Nut Growers Association Report of the Proceedings at the Twenty-Fifth Annual Meeting Battle Creek, Michigan, September 10 and 11, 1934 Following the periodic table, 99 would probably have an even lower melting point than mercury, be silvery, dense and heavy—and perhaps slightly radioactive. The Ultimate Weapon The Standard Oil people will furnish paraffin with a melting point of 138 degrees, and that will cover all of our needs for hot countries. Northern Nut Growers Association Report of the Proceedings at the Fourteenth Annual Meeting Washington D.C. September 26, 27 and 28 1923 Fats readily become oils on heating beyond their melting points, and may be regarded as frozen oils. The Handbook of Soap Manufacture Thus if a small amount of stearic acid be added to liquid palmitic acid and the solution frozen, the melting point of this solid will be lower than that of palmitic acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Stearin and palmitin are hard fats, crystalline in structure, and with a high melting point, while olein is a liquid. Human Foods and Their Nutritive Value Then, too, they had to be protected from the overwhelming pressure and poisonous qualities of the air, and insulated from a temperature far above the melting point of water. Spacehounds of IPC Its melting point is not so high as Parowax, but it is much higher than any of the other waxes. Northern Nut Growers Association Report of the Proceedings at the Fourteenth Annual Meeting Washington D.C. September 26, 27 and 28 1923 The melting point of stearin appears to undergo changes and suggests the existence of distinct modifications. The Handbook of Soap Manufacture Likewise the melting point of stearic acid is lowered by the addition of a small amount of palmitic acid. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. The others are all solids, though their melting points vary through wide limits, from cæsium which melts at 26° to elements which do not melt save in the intense heat of the electric furnace. An Elementary Study of Chemistry It melted at 2800° centigrade, a very high melting point indeed. The Black Star Passes The master pyrometer, after calibrating against the melting points of various substances, will have a calibration chart which should be used in the checking operation. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel At 63° C. it is quite clear, and this temperature is taken as the true melting point. The Handbook of Soap Manufacture The latter temperature is reported as the melting point. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Bismuth finds its chief use as a constituent of alloys, particularly in those of low melting point. An Elementary Study of Chemistry The glass gets hotter and hotter; but—mark the scientific acumen here—just as we are wondering whether it will reach the melting point, the pores open. Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. There are small cones or cylinders made of salts or other substances of known melting points and covering a wide range of temperatures. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel One of the most important properties of this group of acids is the formation of isomeric acids of higher melting point on treatment with nitrous acid, generally termed the elaidin reaction. The Handbook of Soap Manufacture The quality of stearic acid is best judged by the melting point, since the presence of any oleic acid lowers this. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. They are soft, light metals, having low melting points and small densities, as is indicated in the table. An Elementary Study of Chemistry As the melting point of cacao butter is about 32° C, it will be realized that the butter is super-cooled and is ready to crystallize on the slightest provocation. Cocoa and Chocolate Their History from Plantation to Consumer It is essential that this crucible be clean because a slight admixture of a foreign substance might noticeably change the melting point. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Having a low melting point they are far more digestible than most animal fats. Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917 As a consequence of the foregoing facts, natural fats and oils do not exhibit a definite melting point, composed as they are of mixtures of various crystalline glycerides, higher alcohols, fatty acids, and non-crystalline substances. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Some of its alloys are characterized by having low melting points. An Elementary Study of Chemistry You may form an approximation by the use of the above ratios, knowing the melting point of the iron. Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures The melting point of salt is 1,472°F., and the needed correction for the instrument under observation can be readily applied. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel In drying sulphides the heat must not be raised to the melting point of sulphur, since, if there is any free sulphur present, it fuses and filters through. A Text-book of Assaying: For the Use of Those Connected with Mines. This is the melting point determined by the Committee's melting-point method. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. Just above the melting point it forms a rather thin, straw-colored liquid. An Elementary Study of Chemistry In addition to these kilns, a small muffle furnace, fired with 262 petroleum, is provided for the determination of melting points, and an electric carbon resistance furnace, with an aluminum muffle for high-temperature work. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 The purity of the substance affects its freezing or melting point. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel But below this melting point no fusion or union takes place at all, nor will any number of lesser happinesses melt and be massed together into one great one. Is Life Worth Living? In the case of coconut oil the range between softening point and final melting point is rather short; in the case of butter, long. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. When sulphur crystallizes from its solution in carbon disulphide it separates in crystals which have the same color and melting point as roll sulphur, and are rhombic in shape. An Elementary Study of Chemistry Whether it is cooled in liquefied air or heated to its melting point the change goes on just the same. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Test the melting point with a pyrometer of known accuracy. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The necessary small pieces of shellac are made by warming a bit of the gum to near the melting point and then drawing the softened gum into a filament the size of horse hair. Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology In the same way, by repeated treatment of petroleum residuum with amyl alcohol, a substance of melting point 59� C. can be obtained, which cannot be distinguished from ordinary paraffine. Scientific American Supplement, No. 711, August 17, 1889 As will be seen by reference to the table, the melting points and boiling points of the elements of the family increase with their atomic weights. An Elementary Study of Chemistry The less the hydrogen the lower the melting point. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Messrs. Thomson & Bottomley have recently invented a peculiar circuit cutter based upon the use of a metal whose melting point is exceedingly low. Scientific American Supplement, No. 508, September 26, 1885 We believe that the melting point of platinum and the freezing point of mercury are the same as they were a hundred years ago, and as they will be a hundred years hence. Scientific American Supplement, No. 643, April 28, 1888 Other characteristics, such as the melting point, specific gravity, etc., vary in both, and so are not of importance in a comparison. Scientific American Supplement, No. 711, August 17, 1889 In general the melting point of the alloy is below the average of the melting points of its constituents, and it is often lower than any one of them. An Elementary Study of Chemistry Then the ice has got to its melting point under the pressure of one thousand atmospheres, or, as we may put it, the water has reached its freezing point. The Birth-Time of the World and Other Scientific Essays But while most substances have a definite melting point, some substances do not. General Science Resin also is present, and having a high melting point is not removed by the manipulative processes that cotton is subjected to. Scientific American Supplement, No. 620, November 19,1887 The most definite property that can be made use of for this purpose is the melting point. Scientific American Supplement, No. 711, August 17, 1889 A few substances, of which sulphur is an example, crystallize in two different systems, and the crystals differ in such physical properties as melting point and density. An Elementary Study of Chemistry Then there will be no more freezing, for again the ice is at its melting point. The Birth-Time of the World and Other Scientific Essays A fuse is made by combining a number of metals in such a way that the resulting substance has a low melting point and a high electrical resistance. General Science While all fats have practically the same energy-value, they differ widely from each other in their melting point, and the difference in digestibility seems to correspond to the difference in melting point. Foods That Will Win The War And How To Cook Them (1918) The melting point of the commercial product is between 85° to 87° C. Di-nitro-toluene is made in a similar manner. Nitro-Explosives: A Practical Treatise Even platinum, having a melting point of 1779°, may be melted by the heat of the flame. An Elementary Study of Chemistry However, the latent heat diminishes as the melting point is lowered, and at a rate which would reduce it to nothing at about 18,000 atmospheres. The Birth-Time of the World and Other Scientific Essays When peanut oil is present, the melting point will always be above 70�.—Chem. Scientific American Supplement, No. 841, February 13, 1892 Butter substitutes are as digestible and as nourishing as butter, and have a higher melting point. Foods That Will Win The War And How To Cook Them (1918) These solvents are those which also develop a solvent action when heated to their melting point in combination with pyroxyline. Nitro-Explosives: A Practical Treatise When dealing with metals of high melting point, such as steel, the first small roller is made of refractory material and is heated from inside by the flame of a blow pipe. Scientific American Supplement No. 819, September 12, 1891 The melting point of the ice is lowered to -7.5° C. That is, it will require a temperature so low as -7.5° C. to keep it solid. The Birth-Time of the World and Other Scientific Essays Named from cooking sour clabbered curd to the melting point. The Complete Book of Cheese Because of its low melting point, thus allowing the digestive juices to mix with it, and because of its vegetable origin and its purity, Crisco is the easiest of all cooking fats to digest. The Story of Crisco It is a yellow liquid, with a melting point of +3° C. It has an intense odour of bitter almonds. Nitro-Explosives: A Practical Treatise Tin melts at a temperature slightly above the melting point of solder, and, although somewhat expensive, the permanent brightness and silver-like appearance of the castings is very desirable. The Boy Mechanic: Volume 1 700 Things for Boys to Do The melting point would rise instead of falling. The Birth-Time of the World and Other Scientific Essays It melts at 1,300 degrees F., or at least 600 degrees below the melting point of iron, and it neither oxidizes in the atmosphere nor tarnishes in contact with gases. Scientific American Supplement, No. 531, March 6, 1886 The temperature required for the manufacture of the steel was higher than the melting point of most fire-bricks. Heroes of the Telegraph It is especially characterized by its solidity, so that when present in considerable quantity it materially increases the hardness, or raises the melting point, of the fat, as in mutton tallow. The Gutenberg Webster's Unabridged Dictionary Section S Such lard has a higher melting point and is more flaky than that made from fat covering the muscles. Woman's Institute Library of Cookery Volume 3: Soup; Meat; Poultry and Game; Fish and Shell Fish We have seen also, that one atmosphere lowers the melting point of ice by the 1/140 of a degree Centigrade; more exactly by 0.0075°. The Birth-Time of the World and Other Scientific Essays The acid obtained from the first fractionation had the melting point at 75°-76°, indicating an acid either in carbon then stearic or palmitic acids. Scientific American Supplement, No. 497, July 11, 1885 To detect this oil we must take the melting point of the acids along with the solubility of the oil itself in alcohol. Scientific American Supplement, No. 392, July 7, 1883 A word about the melting point of platinum. Scientific American Supplement, No. 358, November 11, 1882 One end of this test bar should be heated almost to its melting point, and held at this heat until the other end just turns red. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon His skate can sink no further, for any lesser concentration of the pressure will not bring the melting point below the prevailing temperature. The Birth-Time of the World and Other Scientific Essays From the portion of the calcium salts insoluble in alcohol, a fatty acid was obtained with a melting point and composition almost identical with the melting point and composition of palmitic acid. Scientific American Supplement, No. 497, July 11, 1885 The melting point of the fatty acids in the oils used to adulterate olive oil differs considerably from this. Scientific American Supplement, No. 392, July 7, 1883 The melting point of tin is near the temperature of caramelized sugar. School and Home Cooking The parts of the work that have been at the melting point will, therefore, have the largest grain size and the least strength. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Pressure will only lead to the melting of ice if the new melting point, _i.e._ that due to the pressure, is below the prevailing temperature. The Birth-Time of the World and Other Scientific Essays It is a hot thundery day, cloudy and close, the thermometer is at 109 degrees in the shade, and everything one touches seems to be at melting point! A Lady's Life on a Farm in Manitoba Far the purpose of determining the melting point of the fatty acids, 10 grammes of oil were saponified with 5 grammes of caustic potash on the water bath; some water and alcohol being added. Scientific American Supplement, No. 392, July 7, 1883 Combined arc and resistance heating is applied to raise the charge to the melting point. The Story of Electricity Zinc melts at low temperatures, and when heated beyond the melting point gives off very poisonous fumes. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The ice to start with is, say, at -3° C. Suppose we apply such a pressure to this ice as will confer a melting point of -2° C. on it. The Birth-Time of the World and Other Scientific Essays There exists a range of temperature previous to the melting point of several of the alloys of lead, tin, and antimony, in which the compound is neither solid, nor yet fluid. On the Economy of Machinery and Manufactures These, being collected, were placed in crucibles of white clay,1038 which were then submitted to the action of a furnace heated to the melting point. History of Phoenicia For practically all purposes, this slightly colored product is entirely satisfactory and is essentially pure, as can be judged by the melting point. Organic Syntheses The melting point of the work which is being preheated should be kept in mind and care exercised not to approach it too closely. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The light weights on cold, dry ice do not lower the melting point below the temperature of the ice, _i.e._ below -10° C., and so they slip on dry ice. The Birth-Time of the World and Other Scientific Essays With steel or wrought iron the temperature must be kept below the melting point to avoid injury to the metal. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The same is true of aluminum, in which the oxide, alumina, will be formed, and with several other alloys comprising elements of different melting points. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon A sample of this partially dried product, on drying in vacuo over sulfuric acid for twenty hours, loses about 10 per cent of its weight and the melting point is 106'0. Organic Syntheses Because of the nature of welding, the melting point of a metal is of great importance. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Brazing must not be attempted on metals whose melting point is less than that of sheet brass. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The object in preheating the metal around the weld is to cause it to expand sufficiently to open the crack a distance equal to the contraction when cooling from the melting point. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Because of the varying melting points, rates of expansion and contraction, and other peculiarities of different metals, it is necessary to give detailed consideration to the most important ones. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon By longer drying under ordinary conditions, the melting point of 106'0 is reached. Organic Syntheses The exact proportion of elements entering into the metals affects their melting points one way or the other in practice. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon A spelter suitable for working with copper is made from equal parts of copper and zinc, melting at about 1400° Fahrenheit, 500° below the melting point of the copper itself. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The low melting point of this last composition makes it very easy to work with and the danger of melting the work is very slight. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The final air-dried product is pure except for its moisture content, as is shown by the fact that on drying in vacuo it has a very good melting point. Organic Syntheses |
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