The Chemical Gazette, Or, Journal of Practical Chemistry, in All Its Applications to Pharmacy, Arts, and Manufactures, Band 1R. and J. E. Taylor, 1843 |
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Seite 4
... separated again by mixing the mass with a little black flux and heating in a glass tube . 1 With Marsh's apparatus weak traces of arsenic spots could be seen when only 3,000,000 of arsenic were present ; with the above described ...
... separated again by mixing the mass with a little black flux and heating in a glass tube . 1 With Marsh's apparatus weak traces of arsenic spots could be seen when only 3,000,000 of arsenic were present ; with the above described ...
Seite 11
... Separation of Chloride of Magnesium from the Chlorides of Potas- sium and Sodium . In the analysis of minerals and mineral ... separated from magnesia in the same manner . Berzelius recommends the more frequent use of the preparations of ...
... Separation of Chloride of Magnesium from the Chlorides of Potas- sium and Sodium . In the analysis of minerals and mineral ... separated from magnesia in the same manner . Berzelius recommends the more frequent use of the preparations of ...
Seite 12
Separation of Zinc from Nickel and Cobalt . The quantitative separation of these oxides is extremely difficult : solution of caustic potassa dissolves out the oxide of zinc , but not perfectly ; even if the mixed oxides be repeatedly ...
Separation of Zinc from Nickel and Cobalt . The quantitative separation of these oxides is extremely difficult : solution of caustic potassa dissolves out the oxide of zinc , but not perfectly ; even if the mixed oxides be repeatedly ...
Seite 13
cobalt must be heated to drive off the mercury , and may then be separated as usual . Separation of Nickel and Cobalt from Manganese . Ullgren precipitates the metals from their solution as superoxides by means of chloride of lime . A ...
cobalt must be heated to drive off the mercury , and may then be separated as usual . Separation of Nickel and Cobalt from Manganese . Ullgren precipitates the metals from their solution as superoxides by means of chloride of lime . A ...
Seite 15
... separated from the resin by dis- solving it in very dilute acetic acid , and precipitating with a solution of ammonia , then dried and weighed . The separation of the cin- chonine and quinine was effected by allowing the greater part of ...
... separated from the resin by dis- solving it in very dilute acetic acid , and precipitating with a solution of ammonia , then dried and weighed . The separation of the cin- chonine and quinine was effected by allowing the greater part of ...
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acetic acid action added æther affords alcohol alkali ammonia analysis antimony aqueous arsenic atoms barytes becomes blue body boiling brown carbonate of soda carbonic acid cent Chem chemical CHEMISTRY chloride chromic acid cold colour colourless combination compound concentrated consists contains converted cooling copper crystalline crystals cyanide decomposed decomposition deposited dilute dissolved distilled dried easily employed evaporated excess experiments extract Fahr filtered formed gelatine glass grms heat hydrate hydrochloric acid hydrogen insoluble iodic acid iodide iodine iron lime liquid mass mercury metallic method mixed mixture muriatic acid neutral nitrate nitric acid nitrogen obtained odour oxalic oxide oxygen peroxide Pharm phosphate platinum portion potassa potassium powder precipitate prepared produced protoxide pure residue resin salt saturated separated silver small quantity smell solanine soluble solution substance sugar sulphate sulphuretted hydrogen sulphuric acid temperature tion treated tube vapours vessel vinegar yellow zinc
Beliebte Passagen
Seite 51 - A TOXICOLOGICAL CHART, exhibiting at one view the Symptoms, Treatment, and Mode of Detecting the various Poisons, Mineral, Vegetable, and Animal. To which are added, concise Directions for the Treatment of Suspended Animation.
Seite 553 - TREATISE ON FOOD AND DIET: With Observations on the Dietetical Regimen suited for Disordered States of the Digestive Organs ; and an Account of the Dietaries of some of the principal Metropolitan and other Establishments for Paupers, Lunatics, Criminals, Children, the Sick, &c. By JON. PEREIRA, MDFRS & LS Author of
Seite 230 - Some cause there must be, which would explain how the practice has become a necessary of life to whole nations. But it is surely still more remarkable, that the beneficial effects of both plants on the health must be ascribed to one and the same substance, the presence of which in two vegetables, belonging to different natural families, and the produce of different quarters of the globe, could hardly have presented itself to the boldest imagination.
Seite 669 - We believe that the importation of one hundredweight of guano is equivalent to the importation of eight hundred-weight of wheat — the hundred-weight of guano assumes in a time which can be accurately estimated the form of a quantity of food corresponding to eight hundred- weight of wheat. The same estimate is applicable in the valuation of bones.
Seite 696 - Tables of the Elementary and Compound Bodies, systematically arranged, and adapted as Tables of Equivalents, or as Chemical Labels. By Charles Button and Warren De la Rue.
Seite 667 - ... excellent remuneration. The origin and formation of sulphuric acid was studied most carefully ; and from year to year, better, simpler, and cheaper methods for making it were discovered. With every improvement in the mode of manufacture, its price fell ; and its sale increased in an equal ratio. Sulphuric acid is now manufactured in leaden chambers, of such magnitude that they would contain the whole of an ordinary-sized house. As regards the process and the apparatus, this manufacture has reached...
Seite 254 - The mixture was placed in a watch-glass, and spread out so as to expose a large surface to the air; the watch-glass was placed on a support in a copper vessel (the air contained in this vessel could be brought to any required temperature). The experiment being thus disposed, the vessel was heated, and by the time that the air in the interior arrived at 248° Fah. a change began to take place in the mixture, and at 266° Fah.
Seite 669 - MY recent researches into the constituent ingredients of our cultivated fields have led me to the conclusion that, of all the elements furnished to plants by the soil and ministering to their nourishment, the phosphate of lime — or, rather, the phosphates generally — must be regarded as the most important.
Seite 669 - ... plants which contain the least amount of the phosphates, and therefore require the smallest quantity for their development. These roots contain 80° to 92° per cent, of water. Their great bulk makes the amount of produce fallacious, as respects their adaptation to the food of animals, inasmuch as their contents of the ingredients of the blood...
Seite 230 - We shall never certainly be able to discover how men were led to the use of the hot infusion of the leaves of a certain shrub (tea), or of a decoction of certain roasted seeds (coffee). Some cause there must be which would explain how the practice has become a necessary of life to whole nations.