It is now prepared from the calcium ferrocyanide formed in gas purifiers (see above) by decomposition with ferrous' sulphate.
Flatulent distension in the stomach or bowels is partly due to air which has been swallowed and partly to gas which has been formed by the decomposition of food.
The decomposition products are generally the same as with the general albumin; it gives the biuret reaction; forms salts with acids and alkalies, but is essentially acid in nature.
The idea is that any traces of acid not washed away by the washing process or produced later by a slow decomposition of the substance will be thereby neutralized and rendered harmless.
These decomposition products include: glycocoll or aminoacetic acid, NH 2 CH 2 Oooh, alanine d ucts.
Changes which involve combination, changes which involve decomposition or separation, and changes which involve at the same time both decomposition and combination.
The decomposition of the carbide by water may be brought about either by bringing the water slowly into contact with an excess of carbide, or by dropping the carbide into an excess of water, and these two main operations again may be varied by innumerable ingenious devices by which the rapidity of the contact may be modified or even eventually stopped.
This observation showed that nascent hydrogen was not, as had been supposed, the primary cause of the separation of metals from their solutions, but that the action consisted in a direct decomposition into metal and acid.
It may be prepared by the electrolysis of acidulated water, by the decomposition of water by various metals or metallic hydrides, and by the action of many metals on acids or on bases.
The chlorides of the nonmetallic elements are usually volatile fuming liquids of low boilingpoint, which can be distilled without decomposition and are decomposed by water.