| 单词 | chlorate |
| 例句 | “That’s okay. Potassium nitrate has much the same property and exactly the same number of oxygen atoms as potassium chlorate. Mix saltpeter and sugar and we should get the same reaction we just saw.” October Sky 1999-04-01T00:00:00Z Chlorides, chlorates, salts of phosphonic acid, fluorides, and arsenic had been discharged from the Rocky Mountain Arsenal into holding ponds during the years of its operation. Silent Spring 1962-09-27T00:00:00Z “Potassium nitrate. KNO3. The same as potassium chlorate except it has a nitrogen atom instead of a chlorine one.” October Sky 1999-04-01T00:00:00Z After class, I went up to Miss Riley’s desk and pointed at the little sack of potassium chlorate. October Sky 1999-04-01T00:00:00Z “Thank you, Quentin. This mixture of potassium chlorate and sugar will demonstrate rapid oxidation.” October Sky 1999-04-01T00:00:00Z “She won’t let us have the potassium chlorate. She said it was too dangerous.” October Sky 1999-04-01T00:00:00Z “This is a mixture of potassium chlorate and sugar,” Miss Riley said. October Sky 1999-04-01T00:00:00Z “Sorry, it’s all I’ve got. Anyway, potassium chlorate is unstable under heat and pressure. It's too dangerous for rocket fuel. What do your parents think about the BCMA?” October Sky 1999-04-01T00:00:00Z His earliest photographs were posed to approximate reality or starkly caught their subjects by surprise in the flash of magnesium powder and potassium chlorate. Jacob Riis Photographs Still Revealing New York’s Other Half 2015-10-22T04:00:00Z The masks release chemicals like barium peroxide, sodium chlorate, and potassium chlorate. 6 common misconceptions about flying 2021-08-09T04:00:00Z Some have more than 200 cars and carry hazardous materials such as propane gas, sodium chlorate and sulfuric acid, said Bellefleur, who is among those pushing for the construction of the bypass. After deadly oil train wreck, change comes slowly for devastated city 2023-07-07T04:00:00Z Write the formulas of barium nitrate and potassium chlorate. Chemistry 2019-02-14T00:00:00Z What they found was a silvery substance, which the technicians later told investigators was “consistent with flash powder and aluminum powder and maybe potassium chlorate.” ‘Catastrophic failure’: How the LAPD blew up a neighborhood 2022-03-06T05:00:00Z Miller admitted to manufacturing and selling smoke-generating devices and a chlorate explosive mixture to customers across the country. Man profiled in magazine sentenced on explosives charge 2021-01-12T05:00:00Z State Department of Ecology and Adams County Emergency Management officials were not informed by Union Pacific of the sodium chlorate spill until March 16 — two days after the derailment. Union questions response to derailment, chemical fire that closed Eastern Washington rail line 2019-04-01T04:00:00Z The spill of sodium chlorate, a crystalline chemical used in bleaching paper pulp, happened in one train car that derailed outside the tunnel. 23-car derailment by Ritzville shuts down Union Pacific line 2019-03-20T04:00:00Z The decomposition of solid potassium chlorate leads to the formation of solid potassium chloride and diatomic oxygen gas. Chemistry 2019-02-14T00:00:00Z The spill of sodium chlorate, a crystalline chemical used in bleaching paper pulp, occurred in one train car that derailed outside the tunnel. 23-car derailment shuts down Union Pacific line, prompts controlled burn of hazardous chemical 2019-03-19T04:00:00Z The records showed he bought potassium chlorate, aluminum metal and other homemade bomb ingredients, purchases that continued after Wray’s death had made news, they said. Man arrested in connection with 2017 exploding package 2018-02-28T05:00:00Z Sodium chlorate is often used to bleach paper pulp. Union questions response to derailment, chemical fire that closed Eastern Washington rail line 2019-04-01T04:00:00Z Such wastes as chlorides, chlorates, salts of phosphonic acid, fluorides, and arsenic had been discharged from the Rocky Mountain Arsenal during the years of its operation by the Army Chemical Corps. Silent Spring—I 2017-01-03T05:00:00Z Another preparative method is the electrochemical oxidation of a hot solution of a metal halide to form the appropriate metal chlorates. Chemistry 2019-02-14T00:00:00Z On Sunday, crews conducted what McMahan called a “successful controlled burn” of the remaining sodium chlorate. 23-car derailment shuts down Union Pacific line, prompts controlled burn of hazardous chemical 2019-03-19T04:00:00Z Named after their creators, the Brock contained potassium chlorate, a flammable liquid, while the Buckingham was filled with phosphorous to act as an incendiary. Leefe Robinson: The man who shot down a Baby Killer - BBC News 2016-09-02T04:00:00Z But McMahan, the Union Pacific spokesman, said the sodium chlorate spill was not detected until March 16. Union questions response to derailment, chemical fire that closed Eastern Washington rail line 2019-04-01T04:00:00Z These chemicals were mainly ammonium-nitrate fertilizer or potassium chlorate shipped from China for use in Pakistan’s match industry and then smuggled across the border. Brussels Bombers Dodged Chemical Curbs 2016-03-28T04:00:00Z Solid potassium chlorate, KClO3, decomposes to form solid potassium chloride and diatomic oxygen gas. Chemistry 2019-02-14T00:00:00Z The instrument saw the signatures of magnesium perchlorate, magnesium chlorate and sodium perchlorate—all hydrated salts that contain water and require water to form. Water Flows on Mars Today, NASA Announces 2015-09-28T04:00:00Z They say the salts are mostly likely magnesium perchlorate, magnesium chlorate, and sodium perchlorate. Dark streaks on Mars are definitely wet, NASA says 2015-09-28T04:00:00Z Union Pacific, after consulting with the sodium chlorate then decided to conduct the controlled burn, mixing the chemical with wood to intensify the fire and reduce the threat of reignition, according to the Ecology Department. Union questions response to derailment, chemical fire that closed Eastern Washington rail line 2019-04-01T04:00:00Z They are salts - magnesium perchlorate, chlorate and chloride - that can drop the freezing point of water by 80 degrees and its vaporisation rate by a factor of 10. Martian salt streaks 'painted by liquid water' - BBC News 2015-09-28T04:00:00Z Colorful fireworks often involve the decomposition of barium nitrate and potassium chlorate and the reaction of the metals magnesium, aluminum, and iron with oxygen. Chemistry 2019-02-14T00:00:00Z At the house, a police team found materials commonly used for bomb-making, like sulfur, potassium chlorate and sodium bicarbonate; explosive devices; a machete and other knives; “jihadi books”; and training materials, Commander Khan said. Bangladesh Police Arrest 12 Men Suspected of Qaeda Ties 2015-07-02T04:00:00Z This catalog of explosive scents includes TNT, smokeless powder, potassium chlorate, C-4 plastic explosive, detonating cord, and ammonium nitrate. War Dogs: Canines of Many Talents 2014-10-20T04:00:00Z They contain nasty substances like potassium nitrate, white phosphorus, barium chlorate and arsenic, so keep the poison control number handy. Recent editorials published in Nebraska newspapers 2014-06-30T04:00:00Z The raid on the warehouse followed the earlier arrest of two men found driving a truck containing 15 tonnes of potassium chlorate. Bomb chemicals found in Pakistan raid 2013-08-20T22:54:07Z For example, perchlorate is chlorate is chlorite is and hypochlorite is ClO−. Chemistry 2019-02-14T00:00:00Z Nick Materer, an Oklahoma State University chemist, said sodium chlorate, when combined with fuel, makes a more volatile mixture. Feds investigating Maryland train explosion 2013-05-29T13:57:00Z A CSX spokesman, Gary Sease, said that sodium chlorate was on the train, which the Department of Transportation classifies as a hazardous material. Fire Erupts After Train Hits Truck in Maryland 2013-05-29T00:30:56Z A spokesman for the CSX cargo company said sodium chlorate, classified by the US transportation department as hazardous material, was on the train. Explosion after US train derailment 2013-05-28T23:25:13Z The chlorate of lime is dissolved in 10 parts of water and filtered. Directions for Collecting and Preserving Insects 2012-03-28T02:00:31.483Z Sodium chlorate is a weed killer; potassium chlorate is used as an oxidizing agent. Chemistry 2019-02-14T00:00:00Z CSX’s Sease said in an email that one of the rail cars in Tuesday’s derailment was carrying sodium chlorate, which the Department of Transportation classifies as a hazardous material. Feds investigating Maryland train explosion 2013-05-29T13:57:00Z A bleaching agent, sodium chlorate is used in making paper. Fire Erupts After Train Hits Truck in Maryland 2013-05-29T00:30:56Z The phosphorus produces the pale, noiseless fire; the chlorate of potash the sharp, crackling illumination. Harper's New Monthly Magazine, Vol. 1. No 1, June 1850 2012-03-21T02:00:31.390Z When, in the same epidemic, bleeding and calomel were replaced by stimulants and iron, with the chlorate of potassium, 90 per cent. recovered. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Patek and a friend he met in Pakistan in the early 1990s took three weeks to blend the explosive mixture of potassium chlorate, sulfur and aluminum powder used in the Bali attack, the indictment said. Terrorism Trial of Accused Bali Bombmaker Begins in Jakarta 2012-02-13T08:45:02Z The oil may be oxidized by treating it on the waterbath with hot hydrochloric acid, with some chlorate of potash, added in small quantities at a time. Scientific American, Vol. XXXVII.?No. 2. [New Series.], July 14, 1877 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:29.743Z The phosphorus produces the pale, noiseless fire; the chlorate of potash, the sharp cracking illumination. Knowledge is Power: A View of the Productive Forces of Modern Society and the Results of Labor, Capital and Skill. 2011-12-24T03:08:00.833Z In 1807 the Rev. Alexander John Forsyth obtained a patent for priming with a fulminating powder made of chlorate of potash, sulphur and charcoal, which exploded by concussion. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z Such cases of pharyngitis and stomatitis, no matter whether influenced by an epidemic or not, furnish the indication for the use of chlorate of potassium. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z A salt might therefore contain no oxygen, e.g. chloride or iodide of potassium; but in most cases salts did contain oxygen, e.g. chlorate or nitrate of potassium. Heroes of Science Chemists 2011-12-09T03:00:21.047Z They consisted of wooden splints coated with sulphur and tipped with antimony, chlorate of potash, and gum. Great Inventions and Discoveries 2011-10-01T02:00:30.900Z The slightly higher result obtained with strong acids is due to the decomposition of chlorates. Chlorination of Water 2011-09-13T02:00:32.243Z On the nipple was placed the copper cap containing the detonating composition, now made of three parts of chlorate of potash, two of fulminate of mercury and one of powdered glass. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z During the catarrhal period cold compresses to the neck and sweetened milk containing potassium chlorate are used instead of the pilocarpine, which is to be resumed as soon as a whoop recurs. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z The Promethean is composed of a small bulb of glass, hermetically sealed, containing a small part of sulphuric acid, and surrounded by a composition of chlorate of potash and aromatics. Nicotiana Or The Smoker's and Snuff-Taker's Companion 2011-07-29T02:00:29.353Z In that year M. Chancel, a Paris professor, invented an apparatus consisting of a small bottle containing asbestos, saturated with sulphuric acid, and wooden splints or matches coated with sulphur, chlorate of potash, and sugar. Great Inventions and Discoveries 2011-10-01T02:00:30.900Z The control of the temperature is very important, for as it increases, side reactions occur with the formation of chlorates, and the efficiency is decreased. Chlorination of Water 2011-09-13T02:00:32.243Z There followed the production of a somewhat different form of match, sticks first dipped in sulphur, and then in a composition of chlorate potash, sulphur, colophony, gum of sugar, and cinnabar for coloring. Inventions in the Century 2011-07-20T02:00:14.643Z Gargles of potassium chlorate, or potassium chlorate with sumac, exert a soothing influence upon the congested tonsils. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z In chlorate formation the greater part of the reaction represents a running down of energy and formation of exothermic compounds, with only a small yield of an endothermic substance. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z You must next prepare a powder composed of equal parts of chlorate of potass and powdered lump sugar. Magic In which are given clear and concise explanations of all the well-known illusions as well as many new ones. 2011-07-10T02:00:22.253Z White Gunpowder: a mixture of potassium chlorate, potassium ferrocyanide, and sugar. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z It consisted of a roll of paper treated with sugar and chlorate of potash and a small cell containing sulphuric acid. Inventions in the Century 2011-07-20T02:00:14.643Z Potassium chlorate is known to be an irritant to the kidneys in large doses, causing intense hyper�mia of these organs, with bloody urine or suppression of urine. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Of these the sodium, potassium and barium chlorates are best known and have been actually tried, in admixture with some combustible substances, as practical explosives. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z Very often the chlorates and nitrates are employed, as they serve the double purpose of supplying oxygen and of imparting colour to the flame. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 "Finland" to "Fleury, Andre" 2011-03-20T02:00:30.697Z To make it, heat the water, add the chlorate of potash, wait till it is entirely dissolved, and then add the acid. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" 2011-02-27T03:00:31.973Z He used folded sanded paper—it may have been a tube—and through this he drew a stick coated with chlorate of potash and phosphorus. Inventions in the Century 2011-07-20T02:00:14.643Z In this connection I have to speak of a remedy which I class among the prophylactic agents—namely, the chlorate of potassium or the chlorate of sodium. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Most other metallic chlorates are barred from practical employment owing to instability, deliquescence or other property. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z The best yield of chlorate was obtained when from 1 to 4% of caustic potash was present. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z Makers of chlorate of potash and cyanide of potassium are profiting largely by the discoveries of Scheele, Gay-Lussac, and others. The Scientific Basis of National Progress Including that of Morality 2010-12-30T03:00:25.567Z Another mixture is 1.8 part aniline salt, 12 parts potassium ferrocyanide, 200 parts water, 3.5 parts potassium chlorate dissolved in water. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z The reason lies in the fact that the chlorate is useful in most cases of stomatitis, and thereby acts as a preventive. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z The violent action of a chlorate mixture is due first to the rapid evolution of oxygen, and also to the fact that a chlorate can be detonated when alone. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z The solution, containing hypochlorites and chlorates, was then applied to the bleaching of linen, paper-pulp or the like, the solution being used over and over again. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z Chromates.—The alkaline chromates are usually obtained by fusion of a chromium compound with an alkaline carbonate and an oxidizing agent, such for example as potassium nitrate or chlorate. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z In this method, employing the first-mentioned solution, chlorate of copper is formed, and this being a very unstable compound, readily decomposes, and the aniline is oxidized by the liberated chlor-oxygen compounds. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Therefore it is that common cases of pharyngeal diphtheria will recover under this treatment alone; and these are the cases which have given its reputation to chlorate of potassium as a remedy for diphtheria. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z A drop of sulphuric acid will start the combustion of a chlorate mixture. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z A saturated solution of potassium chlorate in strong nitric acid is added, and the mass evaporated to dryness. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" But Reinsch’s test cannot be used satisfactorily for a quantitative determination, nor can it be used in the presence of chlorates or nitrates. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" Its nitrate and chlorate are used in pyrotechny. The New Gresham Encyclopedia. Vol. 1 Part 3 Atrebates to Bedlis The effect of the chlorate of potassium is partly a general and partly a local one. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z In admixture with sulphur, sulphides and especially phosphorus, chlorates give extremely sensitive compositions, some of which form the basis of friction tube and firing mixtures. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z In both these cases the oxygen is generated by heating a mixture of chlorate of potash and manganese black oxide. Optical Projection Part 1: Projection of Lantern Slides The above considerations apply equally to the chlorides and chlorates, the iodides and iodates, the sulphides and sulphates, and in general to all chemical salts. The Mechanism of Life Now add the chlorate of potash, and see that every crystal of it is dissolved. A Treatise on Etching Alcoholic stimulants, chlorate of potassium, and muriate of iron are equally indicated, especially when the period of prostration has set in. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Finely divided metals such as aluminium or magnesium give also with permanganates, chlorates or perchlorates sensitive and powerful explosives. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z "You place the chlorate of potash in a thin glass flask, don't you?" John Bull, Junior or French as She is Traduced Bismuth tetroxide, Bi2O4, sometimes termed bismuth bismuthate, is obtained by melting bismuth trioxide with potash, or by igniting bismuth trioxide with potash and potassium chlorate. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" The effect of a small amount of manganese dioxide in aiding in the liberation of oxygen from potassium chlorate is an example which is familiar to all students of elementary chemistry. The Chemistry of Plant Life When gangrene supervenes the prognosis is almost hopeless, but an effort should be made to save the patient's life by the administration of potassium chlorate and of an increased amount of stimulus. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z A few chlorates, perchlorates, permanganates and chromates almost complete the list. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z During the process of fusion potassium chlorate is added, by which means the yield of alizarin is considerably increased. Coal and What We Get from It The priming is not only combustible but also a conductor of electricity, such as an intimate mixture of potassium chlorate with copper sulphide and phosphide. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Potassium chlorate produces a similar though slower action. The Galaxy, April, 1877 Vol. XXIII.—April, 1877.—No. 4. S. One teaspoonful every fourth hour to a child of three to five years, the potassium chlorate and iron mixture being administered twice between. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Potassium chlorate crystallizes in large white tablets, of a bright lustre. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Aniline black introduced; leading to a new use for potassium chlorate and copper salts, and to the manufacture of aniline salt. Coal and What We Get from It Thus the chlorine oxyacids enumerated above form salts named respectively hypochlorites, chlorites, chlorates and perchlorates. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" This should be followed by astringents, such as one-half tablespoonful of alum, borax, or chlorate of potassium placed on the tongue. Special Report on Diseases of Cattle Thus chlorate of potassium or sodium, the latter of which is more soluble and more easily digested than the former, will act as a preventive rather than as a curative remedy. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Stas determined its composition by the analysis of pure silver chlorate. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" A new application for caustic soda and potassium chlorate necessitated an increased production of these materials. Coal and What We Get from It Davy also described and partially investigated the gas, named by him “euchlorine,” obtained by heating potassium chlorate with hydrochloric acid; this gas has been more recently examined by Pebal. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The internal administration of 2 grams of salicylic acid and 3 grams of chlorate of potassium three times a day has also proved to be very beneficial when accompanied with local antiseptic treatment. Special Report on Diseases of Cattle Those, however, who deem it judicious to employ steam as a vehicle for carbolic acid, salicylic acid, chloride of sodium, chlorate of potassium, or lime, had best resort to the atomizer for applying these remedies. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Potassium perchlorate, KClO4, can be obtained by carefully heating the chlorate until it first melts and then nearly all solidifies again. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" In general the majority of blood poisons, potassium chlorate, the derivatives of phenyl hydrazin, pyrodin, phenacetin call forth even in man a considerable increase of the leucocytes besides the destruction of the red blood corpuscles. Histology of the Blood Normal and Pathological Oxygen, recognized by its power of igniting a glowing splinter, results from the decomposition of oxides of the noble metals, peroxides, chlorates, nitrates and other highly oxygenized salts. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" In a test tube mix about one half teaspoonful each of white potassium chlorate crystals and black grains of manganese dioxid. Common Science These chemical matches were simply sulphur matches tipped with a mixture of chlorate of potash and sugar. The Story of a Tinder-box Berthollet, and is best prepared by decomposing barium chlorate with the calculated amount of dilute sulphuric acid. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" A gargle for sore throat may be made by dissolving half a teaspoonful of chlorate of potash in a cupful of warm water. Treatise on the Diseases of Women For many years it had been known that a mixture of potassium chlorate and hydrochloric or sulphuric acids possessed strong oxidizing powers. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Both manganese dioxid and potassium chlorate have a great deal of oxygen bound up in them. Common Science They are simply sulphur matches tipped with a mixture of chlorate of potash and sulphide of antimony, and were ignited by drawing them briskly through a little piece of folded glass-paper. The Story of a Tinder-box Chlorine peroxide was first obtained by Sir H. Davy in 1815 by the action of concentrated sulphuric acid on potassium chlorate. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" If it was filled with a mixture of chlorate of potash and benzol the weight would be probably 110 pounds. The Story of the Great War, Volume V (of 8) Battle of Jutland Bank; Russian Offensive; Kut-El-Amara; East Africa; Verdun; The Great Somme Drive; United States and Belligerents; Summary of Two Years' War The internal administration of chlorate of potash is also indicated, as this drug is excreted in the saliva. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Another ‘cure’ was made of chlorate of potash and sugar. Alcohol: A Dangerous and Unnecessary Medicine, How and Why What Medical Writers Say This composition is simply a mixture of phosphorus, glue, and chlorate of potash. The Story of a Tinder-box The modern process consists in the electrolysis of a hot solution of potassium chloride, or, preferably, the formation of sodium chlorate by the electrolytic method and its subsequent decomposition by potassium chloride. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Make two or three jars of oxygen, using potassium chlorate and manganese dioxide. Ontario Teachers' Manuals: Nature Study Lozenges or pastilles containing chloride of ammonium, chlorate of potash, and cubebs may be employed. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Cases of poisoning by chlorate of potash are on record. Alcohol: A Dangerous and Unnecessary Medicine, How and Why What Medical Writers Say I told you that in England we generally use chlorate of potash in the preparation of the phosphorus composition, whilst abroad nitrate of potash is usually employed. The Story of a Tinder-box It consisted of an acid bottle with a string by which a conical stopper could be raised, and a chlorate match held against the stopper became ignited. Chats on Household Curios To obtain more contrasts a little potassium chlorate may be added. Photographic Reproduction Processes The treatment of these forms consists in improving the general condition of the patient, and in employing a mouth-wash, such as peroxide of hydrogen, Condy's fluid, chlorate of potash, or boro-glyceride. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. In a few hours the rags look much cleaner, and a small amount of chlorate of lime and sulphuric acid is run in to bleach them white. The Building of a Book A Series of Practical Articles Written by Experts in the Various Departments of Book Making and Distributing This may clearly be seen by taking a very small quantity of such a substance as chlorate of potash. The Chemistry, Properties and Tests of Precious Stones In some instances, it may be advisable to use a wash of chlorate of potash, borax, or alum, about one-half ounce to a pint of water. Special Report on Diseases of the Horse If it does not contain any ferrous oxalate it can be used by adding to it a little of the iron chlorate solution. 2d. Photographic Reproduction Processes Massage of the gums night and morning, and rubbing in a paste of chlorate of potash and menthol, is often of great value. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. If they did, potassium chlorate would be a better depolarizer than manganese dioxide, instead of the other way around. With No Strings Attached They were thin strips of wood or cardboard coated with sulphur and tipped with a mixture of mucilage, chlorate of potash, and sulphide of antimony. Home Life in Colonial Days Where the disease is associated with rheumatism, 2-dram doses of salicylate of soda may be substituted for the chlorate of potassium. Special Report on Diseases of the Horse The proofs harsh, devoid of half tones. 1st. The sensitizing solution contains too much iron chlorate. 2d. Exposure too short. Photographic Reproduction Processes The treatment consists in stopping the use of tobacco, and painting the patches with chromic acid, tannic acid, or alum, and employing a chlorate of potash mouth-wash. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. The method of F. Schulze—prolonged digestion with dilute nitric acid, with addition of chlorate—has been largely employed, though the composition of the product is more or less divergent from a 'pure cellulose.' Researches on Cellulose 1895-1900 In addition to the mouth washing in the ulcerative cases it is advisable to use internally chlorate of potash. The Eugenic Marriage, Volume IV. (of IV.) A Personal Guide to the New Science of Better Living and Better Babies Internal treatment may consist in 4 drams tincture of muriate of iron and one-half dram muriate of ammonia or chlorate of potash, given in a pint of water every two hours. Special Report on Diseases of the Horse The sodium chlorate and ammonium chloride are dissolved in 6½ gallons and the copper sulphate separately in 5½ gallons water. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student The amount of oxygen obtained from a given weight of potassium chlorate is exactly the same whether the manganese dioxide is present or not. An Elementary Study of Chemistry No chemist would try to keep chlorate of potash and sulphur together even if they did, by some accident, happen to be in the same locality. Herself Talks with Women Concerning Themselves Powder the sulphuret of antimony and chlorate of potash separately in a mortar, and mix them on paper; after which add them to the other ingredients, previously powdered and mixed. Home Pastimes; or Tableaux Vivants Of these the sulphate of soda in small, repeated doses, the nitrate of potash and bicarbonate of soda in small quantity, or the chlorate of potash in single large doses will be found useful. Special Report on Diseases of the Horse Prepare concentrated solutions of 1¾ lb. aniline salt in 1 gallon water, 1½ lb. ferrocyanide of potash in ¾ gallons water and 1½ lb. potassium chlorate in 1½ gallons water. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student It is prepared either by heating a mixture of potassium chlorate and manganese dioxide, or by separating it from the nitrogen and other gases with which it is mixed in the atmosphere. An Elementary Study of Chemistry The substitution of potassium chlorate for pyrolusite is recommended when calcium chloride is present in the bittern. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" A molecule of potassium chlorate is always composed of just one atom of potassium chloride and three atoms of oxygen. Evolution An Investigation and a Critique The residue of the material after digestion with hydrochloric acid and potassium chlorate may have to be examined for silver, lead, and barium. Aids to Forensic Medicine and Toxicology The solution of aniline salt is first added to the bath, then the sodium chlorate and ammonium chloride, and lastly the copper sulphate, dilute the whole to 14° Tw. and then enter the goods. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student A mixture consisting of one part of manganese dioxide and four parts of potassium chlorate is placed in the flask A and gently heated. An Elementary Study of Chemistry This shows the presence of free oxygen, the heat having caused the potassium chlorate to decompose. Physiology and Hygiene for Secondary Schools On boiling an insoluble chromium compound with chlorate of potash and nitric acid, the chromium passes into solution as chromate. A Text-book of Assaying: For the Use of Those Connected with Mines. Boil the finely divided substance with about one-eighth its bulk of pure hydrochloric acid; add from time to time potassic chlorate until the solids are reduced to a straw-yellow fluid. Aids to Forensic Medicine and Toxicology The various explosives, such as gunpowder, black blasting powder, potassium chlorate powders, nitro-glycerine powders, etc., are described, and their peculiarities and suitability for different purposes are set forth. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 By referring to the reaction between chlorine and hot concentrated solutions of potassium hydroxide, it will be seen that only one molecule of potassium chlorate is formed from six molecules of potassium hydroxide. An Elementary Study of Chemistry The storing of energy by chemical means may be illustrated by decomposing potassium chlorate with heat or by decomposing water by means of a current of electricity. Physiology and Hygiene for Secondary Schools This sulphide may be oxidised with hydrochloric acid and chlorate of potash; and the selenium separated in the manner described. A Text-book of Assaying: For the Use of Those Connected with Mines. The mouth and throat should be rinsed out night and morning with a solution of chlorate of potash and alum, or with peroxide of hydrogen. Manual of Surgery Volume First: General Surgery. Sixth Edition. In 1828 another form of match consisted of a glass tube containing sulphuric acid and surrounded by a mixture of chlorate of potash and sugar. Artificial Light Its Influence upon Civilization The resulting calcium chloride and chlorate are both very soluble. An Elementary Study of Chemistry The principal subject of the lecture is the peculiar colored reflection observed in certain specimens of chlorate of potash. Scientific American Supplement, No. 711, August 17, 1889 In determining antimony in ore, weigh up 0.5 to 1 gram, and dissolve in hydrochloric acid with, if necessary, the help of chlorate of potash. A Text-book of Assaying: For the Use of Those Connected with Mines. Mix a small quantity of potassium chlorate with an equal amount of manganese dioxide and place the mixture in a strong test tube. General Science The following gives a yellow-brown: salt of nickel, 75 grains; sulphate of copper, 75 grains; chlorate of potash, 75 grains; and water, 10 oz. Handbook on Japanning: 2nd Edition For Ironware, Tinware, Wood, Etc. With Sections on Tinplating and Galvanizing It has been found, however, that if the potassium chlorate is mixed with about one fourth its weight of manganese dioxide, the oxygen is given off at a much lower temperature. An Elementary Study of Chemistry The light reflected from fiery opals has been shown by Crookes to possess in many cases a high degree of purity, rivaling in this respect the reflection from chlorate of potash. Scientific American Supplement, No. 711, August 17, 1889 The antimony is separated as sulphide, redissolved in hydrochloric acid, and oxidised with a crystal of chlorate of potash. A Text-book of Assaying: For the Use of Those Connected with Mines. Later, a compound made of chlorate of potash and sulphur was used on the splints. St. Nicholas, Vol. 5, No. 5, March, 1878 With the following solution, all the shades of brown, from orange-brown to cinnamon, are obtained: chlorate of potash, 150 grains; sulphate of copper, 150 grains; and water, 1 quart. Handbook on Japanning: 2nd Edition For Ironware, Tinware, Wood, Etc. With Sections on Tinplating and Galvanizing The chief use of potassium chlorate is as an oxidizing agent in the manufacture of matches, fireworks, and explosives; it is also used in the preparation of oxygen and in medicine. An Elementary Study of Chemistry Many dynamites contain other substances than the above, such as paraffin, resin, sulphur, wood, coal-dust, charcoal, also mineral salts, such as carbonate of magnesia, chlorate of potash, &c. Nitro-Explosives: A Practical Treatise The socket holds a copper cylinder which is charged with 30 grains of the dried coal mixed with 300 grains of a mixture of 3 parts of potassium chlorate and 1 part of nitre. A Text-book of Assaying: For the Use of Those Connected with Mines. In 1829 an English chemist discovered that matches on which had been placed chlorate of potash could be ignited by friction. St. Nicholas, Vol. 5, No. 5, March, 1878 The following solution gives a beautiful dark-brown colour: chlorate of potash, 75 grains; salt of nickel, 150 grains; and water, 10 oz. Handbook on Japanning: 2nd Edition For Ironware, Tinware, Wood, Etc. With Sections on Tinplating and Galvanizing Potassium chlorate, when heated with manganese dioxide, gives up its oxygen at a much lower temperature than when heated alone. An Elementary Study of Chemistry To obtain a total combustion of picric acid it is necessary to mix with it an oxidising agent, such as a nitrate, chlorate, &c. Nitro-Explosives: A Practical Treatise It can also be utilized in the production of caustic and chlorate of potash and other chemicals, which can be manufactured in a state of the greatest purity. Scientific American Supplement, No. 841, February 13, 1892 Afterward, at the suggestion of Professor Faraday, saltpeter was substituted for the chlorate, and then the era of friction matches, or matches lighted by rubbing, was fairly begun. St. Nicholas, Vol. 5, No. 5, March, 1878 When chloride of silver and chlorate of potassa were experimented with, in a similar manner, exactly the same results occurred. Experimental Researches in Electricity, Volume 1 Partly because of this poor yield and partly because the potassium hydroxide is rather expensive, this process is not an economical one for the preparation of potassium chlorate. An Elementary Study of Chemistry Victorite consists of chlorate of potash, picric acid, and olive oil, and with occasionally some charcoal. Nitro-Explosives: A Practical Treatise Put teaspoonful of chlorate of potash in a cup of water and gargle. Camping For Boys Here is a salt called chlorate of potassa, which is now made in large quantities for bleaching, and chemical and medical uses, and for pyrotechnic and other purposes. The Chemical History of a Candle Nitre and chlorate; of potassa gave oxygen, &c., at the positive, and alkali, or even potassium, at the negative pole. Experimental Researches in Electricity, Volume 1 By means of these reactions one can prepare potassium chloride, potassium hypochlorite, and potassium chlorate. An Elementary Study of Chemistry "Dict. of Explosives," says: "If, however, it be exposed to moist and dry air alternately, the chlorate crystallises out on the surfaces, and renders the explosive very sensitive." Nitro-Explosives: A Practical Treatise Phosphorus by weight, 2 parts; potassium chlorate, 5 parts; glue, 3 parts; red lead, 1-1/2 parts; water, 12 parts. Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889 The following is the action of the sulphuric acid in inflaming the mixture of sulphuret of antimony and chlorate of potassa. The Chemical History of a Candle Unless otherwise expressed, the hydrogen was always that obtained by the action of dilute sulphuric acid on pure zinc, and the oxygen that obtained by the action of heat from the chlorate of potassa. Experimental Researches in Electricity, Volume 1 When a solution of silver nitrate is added to a solution of potassium chlorate no precipitate forms. An Elementary Study of Chemistry Porous cakes, or lumps of chlorate of potash, exploded violently with bisulphide of carbon, nitro-benzol, carbonic acid, sulphur, benzene, and mixtures of these substances. Nitro-Explosives: A Practical Treatise French physician expresses his preference for lemon juice, as a local application in diphtheria, to chlorate of potash, nitrate of silver, perchloride of lime water. Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889 For a gargle for sore throat, put a pinch of chlorate of potash in a glass of water. The Whitehouse Cookbook (1887) Cooking, Toilet and Household Recipes, Menus, Dinner-Giving, Table Etiquette, Care of the Sick, Health Suggestions, Facts Worth Knowing, Etc., Etc. The Whole Comprising a Comprehensive Cyclopedia of Information for the Home At that high temperature the chlorate of potash changed into chlorine of potassium, and gave out all the oxygen it contained. The Moon-Voyage Now he poured out a heaping handful of the chlorate crystals, dropping them on top of the mixture in the mortar. The Grammar School Boys in Summer Athletics Divine, and consisting of a mixture of chlorate of potash and nitro- benzol. Nitro-Explosives: A Practical Treatise Phosphorus by weight, 1/2 part; potassium chlorate, 4 parts; glue, 2 parts; whiting, 1 part; finely powdered glass, 4 parts; water, 11 parts. Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889 Another white composition, used for charging ¾ inch flambeaux, consists of 1,000 parts of chlorate of potash, 1,000 of nitrate of baryta, and 175 of boiled oil. Scientific American Supplement, No. 586, March 26, 1887 Now 18 lbs. of chlorate of potash give 7 lbs of oxygen—that is to say, the quantity necessary to the travellers for twenty-four hours. The Moon-Voyage All Amos Garwood put in the mortar after we got there was some chlorate of potash. The Grammar School Boys in Summer Athletics Commercial fulminate is often adulterated with chlorate of potash. Nitro-Explosives: A Practical Treatise Suitable febrifuges are found in potassium nitrate, potassium chlorate, sodium sulphate, or magnesium sulphate, either of which or a mixture of two or more of them, the animal will readily take in his drinking-water. Diseases of the Horse's Foot The Lamarre compositions are all formed of a combustible substance, such as boiled oil,2 of a substance that burns, such as chlorate of potash, and of various coloring salts. Scientific American Supplement, No. 586, March 26, 1887 Barbicane took enough chlorate of potash and caustic potash for two months, as he feared unforeseen delay. The Moon-Voyage When I first started in to learn the drug business it was a favorite trick to give an apprentice one or two small crystals of chlorate to grind in a mortar. The Grammar School Boys in Summer Athletics It must contain nothing liable to reduce the chlorate. Nitro-Explosives: A Practical Treatise Now twenty-eight pounds of chlorate of potassium produces seven pounds of oxygen, or 2,400 litres— the quantity necessary for the travelers during twenty-four hours. From the Earth to the Moon; and, Round the Moon In his first case he tried a mixture of iron perchlorid and potassium chlorate three times a day on a woman who had borne three dead children, with a most successful result. Anomalies and Curiosities of Medicine The eighteen pounds of chlorate of potash gave out the seven pounds of oxygen necessary for the daily consumption of the three travellers. The Moon-Voyage "I can show you, at my store, about ten pounds of the powdered chlorate." The Grammar School Boys in Summer Athletics The paper is again put in the funnel and washed with water until free from potassium chlorate, dried and weighed. Nitro-Explosives: A Practical Treatise A sufficient quantity of chlorate of potassium and of caustic potash was placed at his disposal, together with provisions for eight days. From the Earth to the Moon; and, Round the Moon Over fifty years ago, in a memoir on "Placental Phthisis," Sir James Y. Simpson advanced a new idea in the recommendation of potassium chlorate during the latter stages of pregnancy. Anomalies and Curiosities of Medicine Nothing easier to do by means of chlorate of potash and caustic potash. The Moon-Voyage Potassium chlorate is extremely 'rich' in oxygen, and it is held very loosely in combination. The Grammar School Boys in Summer Athletics Romit consists of 100 parts ammonium nitrate and 7 parts potassium chlorate mixed with a solution of 1 part nitro- naphthalene and 2 parts rectified paraffin oil. Nitro-Explosives: A Practical Treatise There were two things to be done then— first, to replace the absorbed oxygen; secondly, to destroy the expired carbonic acid; both easy enough to do, by means of chlorate of potassium and caustic potash. From the Earth to the Moon; and, Round the Moon He procured some powdered sulphur and potassium chlorate, and placing each in a separate wafer he swallowed both with the aid of water. Anomalies and Curiosities of Medicine The use of the chlorate is simply as a solvent of iodine. American Hand Book of the Daguerreotype The trick I played on you wasn't dangerous, but this chlorate racket is. The Grammar School Boys in Summer Athletics The explosive is pure fulminate of mercury, or a mixture of that substance with nitrate or chlorate of potash, gun-powder, or sulphur. Nitro-Explosives: A Practical Treatise Would he obtain air by chemical means, in getting by heat the oxygen contained in chlorate of potash, and in absorbing carbonic acid by caustic potash? Twenty Thousand Leagues under the Sea Properly prepared it is extremely inflammable, especially when previously saturated with gunpowder, or nitrate or chlorate of potash. The Mysterious Island The solution of chlorate of potash is made by diluting, one part of a saturated solution of the salt with ten parts of water. American Hand Book of the Daguerreotype It is withdrawn from the fire, and 15 grammes potassium chlorate are added, and then 20 c. c. of nitric acid at sp. gr. Scientific American Supplement, No. 401, September 8, 1883 While the fulminate is moist with alcohol, the gun-cotton and chlorate mixture is added, and well mixed with it. Nitro-Explosives: A Practical Treatise "Who has been getting so much chlorate of potash?" he asked, taking down the jar, and looking sharply at her. The Face and the Mask If you grind castor sugar with an equal quantity of chlorate of potash, the result is an innocent-looking white compound, sweet to the taste, and sometimes beneficial in the case of a sore throat. Revenge! The following mixture may be given: potassium chlorate two ounces, salol one-half ounce, and powdered nux vomica one ounce. Common Diseases of Farm Animals The brown fiber is placed in a bath of cold water and chlorate of lime. Scientific American Supplement, No. 363, December 16, 1882 The finished material, however, must be carefully kept from contact with nitrates, chlorates, or oxides. Nitro-Explosives: A Practical Treatise Ignition was effected by the flame resulting when a pad of cotton-wool impregnated with benzoline or potassium chlorate was fired by an electrically heated wire. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power If the gums are sore and the teeth show a tendency to loosen, the best tooth-paste is one containing potassium chlorate. The Prospective Mother, a Handbook for Women During Pregnancy The Doctor, who was watching closely from the end of the room, came near and gave him a dose of chlorate of calcium to stop the hemorrhage; then at a sign from Albert, withdrew again. The Idol of Paris The drink either pure water, with a pinch or two of chlorate and nitrate of potash in it, or patent barley-water if the dog will take it. Dogs and All about Them If heated slowly, it explodes at 152° C., or if heated rapidly, at 187° C. It is often used mixed with potassium chlorate in detonators. Nitro-Explosives: A Practical Treatise Gargle the throat frequently with a solution of a teaspoonful of salt in a pint of water, or thirty grains of chlorate of potash in a wineglass of water. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics Or the chlorate of potash might be given in the form of powder— Take of—Chlorate of Potash two scruples, Lump Sugar one drachm Mix and divide into eight powders. Advice to a Mother on the Management of Her Children The centre one, I venture, contained sulphuric acid and chlorate of potash separated by a close-packed wad of cotton wool. The Dream Doctor The dog, in cases of this kind, needs cooling medicines, such as small doses of the nitrate and chlorates of potash, perhaps less food. Dogs and All about Them Other important electro-chemical processes are involved in the electrolysis of the various alkaline salts to obtain metallic sodium and such products as chlorates. The Story of Electricity Did he obtain air using chemical methods, releasing the oxygen contained in potassium chlorate by heating it, meanwhile absorbing the carbon dioxide with potassium hydroxide? Twenty Thousand Leagues Under the Sea Properly prepared, it is extremely inflammable, especially when it has been previously saturated with gunpowder, or boiled in a solution of nitrate or chlorate of potash. The Mysterious Island A bottle labelled "Sulphuric Acid" stood at one end of a shelf, while at the other was a huge jar full of black grains, next a bottle of chlorate of potash. The Dream Doctor During this addition, the solution must be kept thoroughly cooled with ice, in order that chlorates will not be formed. Organic Syntheses In some processes the electrolysis affords directly an alkaline hypochlorite or a chlorate, the former being of wide commercial use as a bleaching agent in textile works and in the paper industry. The Story of Electricity |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。