Hypochlorite high percentage

Calcium hypochlorite high percentage bleaching powder. Produced e.g. by chlorination of calcium hydroxide suspensions and separation of the calcium hypochlorite formed as its dihydrate. 

Calcium hypochlorite There are a number of processes for the manufacture of calcium hypochlorite ( high percentage bleaching powder ). The oldest is the Griesheim Elektron process ( Perchloron process ) in which a calcium hydroxide suspension is chlorinated to such an extent that the calcium chloride formed mostly dis.solves, but not the calcium hypochlorite. 

Table 6.2 shows the important applications of sodium hydroxide. Direct applications can be further broken down into pulp and paper (24%), soaps and detergents (10%), alumina (6%), petroleum (7%), textiles (5%), water treatment (5%), and miscellaneous (43%). Organic chemicals manufactured with sodium hydroxide are propylene oxide (23%), polycarbonate (5%), ethyleneamines (3%), epoxy resins (3%), and miscellaneous (66%). Inorganic chemicals manufactured are sodium and calcium hypochlorite (24%), sodium cyanide (10%), sulfur compounds (14%), and miscellaneous (52%). As you can see from the number of applications listed, and still the high percentages of miscellaneous uses, sodium hydroxide has a very diverse use profile. It is the chief industrial alkali. 

High-percentage hypochlorite is produced by reacting chlorine with either milk of lime, or an aqueous suspension of bleaching powder. The reaction produces a mixture of calcium hypochlorite and calcium chloride (31.2), which is dried. Available chlorine values of greater than 70 % are obtained [31.3]. 

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