| 单词 | mercuric |
| 例句 | All the while, quick shoulder rolls and hip swirls are slipped in with mercuric speed. Dance Review: Preljocaj, Wheeldon and Martins Works at City Ballet 2014-02-12T22:51:38Z Joseph Priestley first prepared pure oxygen by heating mercuric oxide, HgO: Chemistry 2019-02-14T00:00:00Z One of my biggest coups was “getting ahold” of some very toxic mercuric oxide from the school lab. I Was a Teenage Element Hoarder 2019-02-08T05:00:00Z If "mercurous chloride," "calomel," "mercuric," "mercurio" or "mercury" is listed on the label, stop using the product immediately. FDA: Anti-Aging, Skin-Lightening Products May Contain Mercury 2016-08-03T04:00:00Z “A few kilos of mercuric oxides in solid form is much better than spreading it about far and wide as aerosols in the air,” Skyonic CEO and founder, Joe Jones said. Construction Begins on New Carbon-Capture Plant 2013-10-03T22:15:00.650Z We must therefore disinfect all sputum at once with mercuric bi-chloride. Health, Happiness, and Longevity Health without medicine: happiness without money: the result, longevity 2012-03-22T02:00:38.537Z Intensities of vermilion, carmine, mercuric iodide, and Indian red 101 20. Colour Measurement and Mixture 2012-02-27T03:00:13.987Z Compressed dry guncotton is easily detonated by an initiative detonator such as mercuric fulminate. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z One of my biggest coups was “getting hold” of some very toxic mercuric oxide from the school lab. I Was a Teenage Element Hoarder 2011-10-11T15:15:05.957Z The next salt to be obtained was the mercuric salt, which was prepared in 1799 by Edward Charles Howard, who substituted mercury for silver in Brugnatelli’s process. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Then add a few drops of solution of mercuric chloride; the surface of the mercury will become level, read and record its new position. The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame For the use of chemical and physical students Double salts of cerous chloride with stannic chloride, mercuric chloride, and platinic chloride are also known. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" Place it face up in a glass tray, and turn the mercuric solution over it, till the image first disappears and again becomes visible. Harper's Round Table, August 13, 1895 Nitric acid oxidizes it to mercuric nitrate, while potash or soda decomposes it into mercury and oxygen. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" The use of mercuric fulminate as a detonator dates from about 1814, when the explosive cap was invented. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Various oxychlorides are formed by digesting corrosive sublimate with mercuric oxide. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 4 "Coquelin" to "Costume" In all these cases of partial decomposition some of the mercurous chloride—the calomel—is changed into soluble mercuric chloride and metallic mercury. The History of the Medical Department of Transylvania University If the plate does not need much intensifying, leave it in the mercuric solution just long enough for the surface to whiten. Harper's Round Table, August 13, 1895 Long continued boiling with water gives mercury and mercuric chloride; dilute hydrochloric acid or solutions of alkaline chlorides convert it into mercuric chloride on long boiling. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Metacinnabarite is a cubic form of mercuric sulphide, this compound being dimorphous. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" Precipitated calcium carbonate may be used in place of the mercuric oxide, or a hypochlorite may be decomposed by a dilute mineral acid and the resulting solution distilled. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" The compounds of mercury attracted considerable attention, mainly on account of their medicinal properties; mercuric oxide and corrosive sublimate were known to pseudo-Geber, and the nitrate and basic sulphate to “Basil Valentine.” Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Cases of mercurial poisoning sometimes follow disinfection of cattle stables with the usual 1 to 1,000 solution of mercuric chlorid. Special Report on Diseases of Cattle The supporters of the formula Hg2Cl2 pointed out that dissociation into mercury and mercuric chloride would give this value, since mercury is a monatomic element. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Which occurs when salt is dissolved in water, milk sours, iron rusts, water boils, iron is magnetized and mercuric oxide is heated above the boiling point of mercury? Boy Scouts Handbook The First Edition, 1911 Chlorine monoxide results on passing chlorine over dry precipitated mercuric oxide. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Substances which burn with difficulty may be mixed with mercuric oxide in addition to copper oxide. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Mercuric sulphide forms the brilliant red pigment, vermilion, and mercuric oxide is becoming increasingly important in anti-fouling marine paint for ship-bottoms. The Economic Aspect of Geology The specific value of mercurous chloride is that it exerts the valuable properties of mercuric chloride in the safest and least irritant manner, as the active salt is continuously and freshly generated in small quantities. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Prepare a similar series of tube cultivations numbered consecutively 7 to 12 and add varying quantities of the mercuric perchloride solution, viz.: The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Those not containing a nitro group may be prepared by the oxidation of the corresponding mixed hydrazo compounds with mercuric oxide. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" It is true that mercuric chloride is very effective, but I cannot think of a single modern reason to use it. Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy. The image can also be developed in a solution of gold, or in a very weak solution of mercuric chloride at 1 per 10,000. Photographic Reproduction Processes The stools are dark green, containing calomel, mercuric sulphide and bile which, owing to the antiseptic action, has not been decomposed. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" The resulting wounds may be washed frequently with a solution of 1 part of carbolic acid to 50 parts of water, or of 1 part of mercuric chlorid to 1,000 parts of water. Special Report on Diseases of the Horse This applies particularly to salts of mercury, such as corrosive sublimate or mercuric chloride, and biniodide of mercury, both of which have very considerable germicidal power, and are consequently frequently added to soaps. The Handbook of Soap Manufacture To 20 cc. of milk or cream in a beaker add 20 cc. of acid mercuric nitrate and about 40 cc. of H2O. Human Foods and Their Nutritive Value How could you distinguish between mercurous chloride and mercuric chloride? An Elementary Study of Chemistry Calomel exerts remote actions in the form of mercuric chloride. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" It was much more threatening to the mercuric Gallic spirit than the shouting of the French was to the unemotional English disposition. The Eagle of the Empire A Story of Waterloo Ether Soap.—Another form of medicated soap made by a few firms is a liquid ether soap containing mercuric iodide, and intended for surgeons' use. The Handbook of Soap Manufacture To prepare a small amount of this solution, dissolve two-thirds of an ounce of mercuric nitrate crystals in 1 quart of distilled water and add one-third of a fluid ounce of nitric acid. The Science of Fingerprints Classification and Uses The mercuric chloride, being readily volatile, vaporizes and is condensed again in cool vessels. An Elementary Study of Chemistry Other poisonous preparations are red precipitate, white precipitate, mercuric nitrate, the cyanide and potassio-mercuric iodide. Aids to Forensic Medicine and Toxicology In order to study the effect of poison, another set was placed in water containing a small quantity of mercuric chloride. Response in the Living and Non-Living The difference between free and combined oxygen may also be shown by decomposing other compounds of oxygen, such as water and mercuric oxide. Physiology and Hygiene for Secondary Schools It should then be rinsed thoroughly in water to remove all mercuric nitrate. The Science of Fingerprints Classification and Uses This substance can be made by dissolving mercuric oxide in hydrochloric acid. An Elementary Study of Chemistry One portion of the solution strikes a purple colour with chloride of gold, another portion gives a white or grey precipitate or cloudiness with mercuric chloride. A Text-book of Assaying: For the Use of Those Connected with Mines. Effect of anæsthetics and poisons.—Ordinary anæsthetics, like chloroform, and poisons, like mercuric chloride, are known to produce a profound depression or abolish all signs of response in the living tissue. Response in the Living and Non-Living In a flash he was Black Bill again and on his mettle, ready with the quick retort stung from him; and she, parrying his thrust, was at once Fluff, the mercuric. The Bells of San Juan It is based upon the fact that mercuric fulminate, when heated with a large volume of water under high pressure, splits up into metallic mercury and non-explosive mercurial compounds of unknown composition. Nitro-Explosives: A Practical Treatise The problem is to find out what weight of mercuric oxide will yield 20 g. of oxygen. An Elementary Study of Chemistry Pour solution of mercuric chloride on mercury and explain what happens. A Text-book of Assaying: For the Use of Those Connected with Mines. The latter object is accomplished by oxidation to stannic chloride by means of mercuric chloride added in excess, as the mercuric salts have no effect upon ferrous iron or the bichromate. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Over the wound is then placed a protective layer of gauze, impregnated either with boric acid, with a mercuric salt, or with iodoform. Diseases of the Horse's Foot It may be here observed that no acetone can be detected in the distillate by means of the mercuric oxide test, and free bromine is also absent. Nitro-Explosives: A Practical Treatise The decomposition of mercuric oxide is an example: HgO = Hg + O. 3. An Elementary Study of Chemistry The residue, filtered, washed, and boiled with dilute nitric acid, will, in the absence of much lead, be pure mercuric sulphide. A Text-book of Assaying: For the Use of Those Connected with Mines. When cold, add rapidly about 30 cc. of mercuric chloride solution. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes It is said that a man swallowed 80 grains of mercuric chlorid in whiskey and water, and vomited violently about ten minutes afterward. Anomalies and Curiosities of Medicine If a few drops of corrosive sublimate be dropped on these crystals, a red spot will at once be produced by the formation of mercuric oxide. Scientific American Supplement, No. 392, July 7, 1883 HgO will in this way represent mercuric oxide, a molecule of which has been found to contain 1 atom each of mercury and oxygen. An Elementary Study of Chemistry Mercury itself is soluble in nitric acid, forming, when the acid is hot and strong, mercuric nitrate. A Text-book of Assaying: For the Use of Those Connected with Mines. Proceed with the solution of the ore, treat the residue, if necessary, and reduce the iron by the addition of stannous chloride, followed by mercuric chloride, as described for the bichromate process on page 56. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Chlorine, bromine, and mercuric chloride gave the best results; solutions of mercuric chloride, nitrate, or sulphate diluted to 1 part in 1,000 destroy spores in ten minutes.—R. Scientific American Supplement, No. 344, August 5, 1882 This mercuric chloride is said to form an additive compound with the phosphine of the crude acetylene, which compound is decomposed by the ferric chloride, and the mercuric chloride recovered. 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 The equation HgO = Hg + O does not tell us that it is necessary to keep the mercuric oxide at a high temperature in order that the decomposition may go on. An Elementary Study of Chemistry Examine cinnabar, vermilion, mercury, red oxide, mercurous and mercuric chloride. An Introduction to Chemical Science A good furnace should bring down the sulphur contents even of concentrates so as to be innocuous to mercuric amalgamation. Getting Gold: a practical treatise for prospectors, miners and students If a solution of potassium iodide is added to solutions of a mercurous and a mercuric salt respectively, the corresponding iodides are precipitated. An Elementary Study of Chemistry Having obtained an equation describing the conduct of mercuric oxide on being heated, it will not do to assume that other oxides will behave in like manner. An Elementary Study of Chemistry Commercially it is manufactured by heating a mixture of mercuric chloride and mercury. An Elementary Study of Chemistry Again, suppose we wish to find what weight of oxygen can be obtained from 15 g. of mercuric oxide. An Elementary Study of Chemistry The object of calcining or roasting certain ores before treatment is to dissipate the sulphur or sulphides of arsenic, antimony, lead, etc., which are inimical to treatment, whether by ordinary mercuric amalgamation or lixiviation. Getting Gold: a practical treatise for prospectors, miners and students The equation representing the decomposition of mercuric oxide is HgO = Hg + O. The relative weights of the mercury and oxygen atoms are respectively 200 and 16. An Elementary Study of Chemistry The relative weight of the mercuric oxide molecule must therefore be the sum of these, or 216. An Elementary Study of Chemistry By passing hydrosulphuric acid into a solution of a mercuric salt it is precipitated as a black powder, insoluble in water and acids. An Elementary Study of Chemistry The molecule of mercuric oxide and the atom of oxygen which it contains have the ratio 216: 16. An Elementary Study of Chemistry This same ratio must therefore hold between the weight of any given quantity of mercuric oxide and that of the oxygen which it contains. An Elementary Study of Chemistry In a former chapter it was shown that mercuric oxide decomposes when heated to form mercury and oxygen. An Elementary Study of Chemistry Contrast the action of heat on cupric nitrate and mercuric nitrate. An Elementary Study of Chemistry |
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