how to prepare bleaching powder
Answers
Explanation:
preparation of bleaching powder reaction
Bleaching powder is prepared on a large scale by passing the chlorine gas through a solution that contains calcium hydroxide. Bleaching powder is also sold on the basis of the available chlorine, which is liberated when it is treated with the dilute acid. Bleaching powder is used for bleaching paper pulps and fabrics and for sterilizing water.
Calcium hypochlorite is used as a bleaching agent and disinfectant agent. The bleaching powder is also called as chlorinated lime (chloride of lime) which is used in error in the whitewash. Bleaching powder also causes irritation on the skin and eye.
Preparation of Bleaching powder
Hasen Clever Plant for the preparation of Bleaching Powder :
The HasenClever plant consists of four cylinder of cast iron. Each cylinder is about 2m to 3m long .Each cylinder is provided with the stirrer to ensure mixing of substances. There is an inlet that is present in the upper most cylinder for `Ca(OH)_2` . The bottom cylinder has an inlet that is present for `Cl_2` and outlet at the bottom for the bleaching powder to be accumulated. Each cylinder is connected to the other cylinder by means of pipes
Chemical formula of Bleaching Powder is CaOCl2 and its Chemical name is Calcium Oxychloride. It is Prepared by Chlorine gas over dry slaked lime. Generally this method is used in large scale preparation of bleaching powder.r
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