Bleach is made by reacting chlorine gas with calcium hydroxide (hydrated lime).Because absolutely dry calcium hydroxide does not react with chlorine gas, chlorine can only be adsorbed by calcium hydroxide.Therefore, in industry, hydrated lime containing less than 1% free water is used for chlorination, and the chlorine gas used also contains less than 0.06% water.The free water in these raw materials is used to hydrolyze chlorine gas to produce acid (HClO, HCl), and the resulting acid is neutralized by hydrated lime.Then, depending on the water precipitated from calcium hydroxide during the chlorination reaction, the chlorine will continue to be hydrolyzed, and more calcium hydroxide will be involved in the reaction process to generate a series of compounds.Bleach is a complex of these compounds.
Application
With strong bleaching and disinfection effects, TCCA is extensively adopted for civil sanitation, animal husbandry, plant protection, cotton, gunning, chemical fabrics, woolens, battery materials, organic synthesis industry, and laundry.Stabilised chlorine tablets (trichlor) are used very widely to chlorinate swimming pool water.
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Disinfection with Chlorine | Public Water Systems | Drinking
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China Chemicals Used To Purify Water Supplier
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