Difference between washing soda and bleaching powder

Washing soda:
The chemical name of washing soda is hydrated sodium carbonate and its chemical formula is Na₂CO₃.10H₂O. It is obtained by heating sodium hydrogen carbonate.

The re-crystallization of sodium carbonate produces washing soda.

Sodium carbonate is used in the manufacturing of glass, soap, and paper. It is also used for the manufacturing of borax, for removing permanent hardness of water.

 

Bleaching powder:

Chlorine gas obtained in the electrolysis is used for the manufacture of bleaching powder. Chlorine gas on reacting with dry slaked lime [Ca(OH)₂] produces bleaching powder (CaOCl₂). The chemical equation involved in the reaction can be represented as:

Bleaching powder is used for disinfecting water to make it germ-free. It is used in the textile industry to produce cotton and linen materials. It is also used as an oxidizing agent in many chemical industries.

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