Chapter : 5. Compounds of Common Use
Properties and Uses of Bleaching Powder
21. Bleaching Powder (CaOCl2 ) : Chemically, it is called calcium oxychloride. It is also called as chloride of lime.
Manufacture. It is manufactured by Hasenclever's plant or in Bachmann's plant by the reaction of dry slaked lime with chlorine gas.
22. Properties of Bleaching Powder (Calcium oxychloride).
(i) It is a pale yellow powder. It has a strong smell of chlorine.
(ii) It is soluble in water but a clear solution is never formed due to presence of impurities.
(iii) It loses chlorine by the action of carbon dioxide.
CaOCl2 + CO2 → CaCO3 + Cl2
23. Uses of Bleaching Powder :
(i) It is used for bleaching cotton, linen in textile industries, for bleaching washed clothes in laundry.
(ii) It is used as oxidizing agent in many chemical industries.
(iii) It is used for disinfecting drinking water to make water free from micro-organisms.
(iv) it is used for manufacture of chloroform.
(v) It makes wool unshrinkable.
Manufacture. It is manufactured by Hasenclever's plant or in Bachmann's plant by the reaction of dry slaked lime with chlorine gas.
22. Properties of Bleaching Powder (Calcium oxychloride).
(i) It is a pale yellow powder. It has a strong smell of chlorine.
(ii) It is soluble in water but a clear solution is never formed due to presence of impurities.
(iii) It loses chlorine by the action of carbon dioxide.
CaOCl2 + CO2 → CaCO3 + Cl2
23. Uses of Bleaching Powder :
(i) It is used for bleaching cotton, linen in textile industries, for bleaching washed clothes in laundry.
(ii) It is used as oxidizing agent in many chemical industries.
(iii) It is used for disinfecting drinking water to make water free from micro-organisms.
(iv) it is used for manufacture of chloroform.
(v) It makes wool unshrinkable.
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