Page 2 - 3. LESSON NOTES-(CH-2 BLEACHING POWDER)
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4.  Reaction with moisture from atmosphere-

                       CaOCl2    +   H2O   →  Ca(OH)2  +  Cl2

                   5.  Reaction with Carbon dioxide from atmosphere -

                       CaOCl2  +  CO2  →  Ca(CO3)2   +  Cl2

                   6.  Due to the release of Chlorine gas on being exposed to Atmosphere,
                       bleaching powder loses its properties when left open to air.

                                Uses Of Bleaching Powder-


                  It is used for several purposes:
                       1.  As a bleaching agent for –
                           a.  Bleaching cotton and linen in the textile industry,
                           b.  Bleaching wood pulp in paper manufacturing industry.
                           c.  Bleaching washed clothes in laundry.
































                                 Bleaching of clothes, fades the colour of the Fabric.

                       2.  As an oxidizing agent in many chemical industries.



                       3.  As a disinfectant, it’s used to-
                          a.  Disinfect drinking water and make it germfree.
                          b.  Disinfect water in Tanks, Ponds, wells & Swimming pools.
                          c.  Disinfect drains, roads, and various areas which are thickly populated.




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