Elements of Chemistry: In which the Recent Discoveries in the Science are Included and Its Doctrines Familiarly Explained : Illustrated by Numerous Engravings and Designed for the Use of Schools and Academies
D.F. Robinson & Company, 1832 - 356 Seiten
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absorbs action affinity alcohol alkali animal appearance atmosphere atom attraction base becomes bismuth bodies boiling called caloric carbonic acid cause charcoal chemical chlorine cold color combining common composed composition compound consequence consists contains converted copper crystals decomposed described dissolved earth effect electricity elements employed equal equivalent evaporation exists experiment Explain exposed fire fluid force galvanic gases glass gold grains heat hydrogen inches iron known lead light lime liquid manner matter means mercury metal method mineral mixed mixture muriate nature nitric nitrogen obtained oxide oxygen pass piece plants plates portion potash potassium powder prepared principle produced properties proportions pure quantity remains respect salt separated silver soda solid solution specific gravity substances sulphate sulphuret sulphuric acid supposed surface temperature tion tube vegetable vessel weight wire zinc
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Seite 192 - ... one hundred parts of water, and sprinkle this mixture over the field before the plough. In a few seconds, the free acids unite with the bases contained in the earth, and a neutral salt is formed in a very fine state of division.
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Seite 338 - A compound of these metals or their oxide may be dissolved in muriatic acid. If the iron is in a large proportion compared with the manganese, the following process may be adopted with advantage. To the cold solution, considerably diluted with water, and acidulated with muriatic acid, carbonate of soda is gradually added, and the liquid is briskly stirred with a glass rod during the effervescence, in order that it may become highly charged with carbonic acid. By neutralizing the solution in this...
Seite 340 - I am acquainted for effecting its separation, is the following. The carbonate of ammonia is first added, and the phosphoric acid is dropped into the liquid, until all the magnesia is thrown down in the form of the ammoniaco-magnesian phosphate. The excess of phosphoric acid is afterwards removed by the acetate of lead, and that of lead by sulphuretted hydrogen. The acetate of the alkali is then brought to dryness, ignited, and by the addition of sulphate of ammonia is converted into a sulphate. ,...
Seite 339 - The soluble parts are taken up in hot water; an excess of the carbonate of ammonia is added; and the insoluble matters, consisting of silica, carbonate of baryta, and all the constituents of the mineral, excepting the fixed alkali, are collected on a filter. The clear solution is evaporated to dryness in a porcelain capsule, and the dry mass is heated to redness in a crucible of platinum, in order to espel the salts of ammonia.
Seite 338 - ... acid with either of those alkalies. That this process should succeed, it is necessary that the iron be wholly in the state of peroxide, that the solution be exactly neutral, which may easily be insured, by the cautious use of ammonia, and that the reddish-brown coloured succinate of iron be washed with cold water. Of this succinate, well dried at a temperature of 212° F., 90 parts correspond to 40 of the peroxide.