what is bleaching powder? how it is produced ?

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Jyoti Sadana

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CaO2Cl2 It is produced by reaction on chlorine on calcium hydroxide.
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CaOCl2 is called bleaching powder. Bleaching powder is produced by passing chlorine gas over slaked lime.
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Calcium hypochlorite is called as a bleaching agent which is marketed as chlorine powder or bleaching powder for water treatment. It is produced industrially by treating slaked lime (Ca(OH)2) with chlorine gas.The full conversion is given as 2 Cl2+ 2 Ca(OH)2 ? Ca(OCl)2 + CaCl2+ 2 H2O
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The chemical formula of Bleaching powder is CaO2Cl2. It is usually a mixture of calcium chloride hypochlorite, CaCl(OCl); calcium hypochlorite, Ca(OCl)2; and calcium chloride, CaCl2. It can be prepared by reacting calcium hydroxide, Ca(OH)2, with chlorine gas, Cl2
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