Collier's New Encyclopedia

A complete general encyclopedia of 1921 — the world as it was understood just after the Great War, from Aachen to Zwingli, across twelve volumes and six thousand pages.

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Bleaching

the art of rendering materials colorless. This is done by exsun, or by the action of bleaching agents. The chief of these is called bleaching sun, or by the action of bleaching agents. prepared by exposing moistened quick- lime to the action of chlorine, when hypopowder. It is chloride of lime, and is lime to the action of chlorine, when hypopre chlorite and chloride of calcium are formed, the former being the bleaching agent. By the action of an acid on good formed, the former being the bleaching bleaching powder 30 per cent. of chlorine tions of bleaching powder and of dilute is liberated. Substances are bleached by alternately dipping them in dilute solutions of bleaching powder and of dilute used to purify an offensive or infectious sulphuric acid. Bleaching powder is also atmosphere. atmosphere. of Cuvier, belonging to the family BLEAK, a fish, the leuciscus alburnus cyprinidæ. It is a river fish five or six inches long, and is found in Great Britain.

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