The difference between calcium hypochlorite and bleaching powder: What is calcium hypochlorite? The main components of bleaching powder commonly used in aquaculture are calcium chloride and calcium hypochlorite. Among them: the active ingredient of bleaching powder for disinfection effect is calcium hypochlorite [Ca(ClO)2], and calcium chloride is a chemical substance that will obviously absorb moisture. It is precisely because of the presence of calcium chloride in bleaching powder that bleaching powder The available chlorine is easily affected and decreased.
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Sodium hypochlorite or calcium hypochlorite which is more bleaching? The chemical formula of calcium hypochlorite is Ca(OCl)2, a calcium hypochlorite molecule contains 2 hypochlorite radicals, the relative molecular mass = 143; the chemical formula of sodium hypochlorite is NaOCl, a sodium hypochlorite molecule contains 1 hypochlorite radical, and the relative molecular mass = 74.5. Therefore, the content of hypochlorite in the same quality of calcium hypochlorite and sodium hypochlorite, calcium hypochlorite is more, and the bleaching property of calcium hypochlorite is greater than that of sodium hypochlorite.
How does bleach （calcium hypochlorite）work? Bleach is a white powder with an irritating smell of chlorine, which can dissolve with water and contain a large amount of sediment in aqueous solution. Bleaching powder contains 28% ~ 32% effective chlorine, but it is easy to lose effective chlorine in air, sunlight, heat and humidity.