Write a short note on bleaching powder with uses and properties
Answers
Bleaching powder or Calcium hypochlorite (CaOCl2) is mixed salt have two type of anion Cl-(chloride ion ) and OCl-(hypochlorite ion) .it act as oxidizing agent and bleaching agent
Bleaching powder has a lot of uses.
■ It is used for bleaching silk and wool.
It is mainly used as bleaching agent for cotton, linen and wood pulp.
Bleaching action of bleaching powder is due to oxidation and it is permanent
CaOCl2 + H2O——-Ca(OH)2 + Cl2
Cl2 + H2O——- O +2HCl
COLOR+O—-> COLORLESS
■ Bleaching powder is used as disinfectant and germicide especially in the sterilization of drinking water.
■ It is used for manufacturing of chloroform.
■ It is used as an oxidising agent in many chemical industries to obtain various chemical products.
C2H5OH+Cl2—->CH3CHO + 2HC