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Production::Calcium hypochlorite

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Calcium::calcium    First::water    Title::chloride    Chlorine::category    Journal::hazchem    Reacts::correct

Production Calcium hypochlorite is produced industrially by treating lime (Ca(OH)2) with chlorine gas. The reaction can be conducted in stages to give various compositions, each with different concentration of calcium hypochlorite, together with unconverted lime and calcium chloride. The full conversion is shown<ref name=Ullmann></ref>

2 Cl{{#invoke:Su|main}} + 2 Ca(OH){{#invoke:Su|main}}Ca(OCl){{#invoke:Su|main}} + CaCl{{#invoke:Su|main}} + 2 H{{#invoke:Su|main}}O

Bleaching powder is made with slightly moist slaked lime. It is not a simple mixture of calcium hypochlorite, calcium chloride, and calcium hydroxide. Instead, it is a mixture consisting principally of calcium hypochlorite Ca(OCl)2, dibasic calcium hypochlorite, Ca3(OCl)2(OH)4, and dibasic calcium chloride, Ca3Cl2(OH)4.<ref>W.L Smith, Inorganic bleaches, Production of Hypochlorite in Handbook of Detergents,Part F, (2009) Ed. U Zoller and Paul Sosis, CRCPress, ISBN 978-0-8247-0349-3</ref>


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