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.

Bleaching powder can be used for tableware, tea set, furniture, environment, transportation, sewage, garbage, feces and other disinfection, widely applicable. In the condition of sufficient moisture in the dirt, 1 part of the dirt plus 0.2 parts of bleach, stirring, covering and standing for 2 hours can kill bacteria. Bleaching powder sterilization principle, must fall in certain moisture condition, ability produces sterilization material, bleaching powder asperses in dry place to have disinfection effect not easily. Bleaching powder has bleaching effect, can make the color of colored cotton fabrics fade, on cloth, metal corrosion, therefore, when reusing should take rubber gloves, wear overalls or old clothes. [Principle: The main components of bleaching powder are calcium hypochlorite and calcium chloride, and the active component is calcium hypochlorite. The bleaching principle of bleaching powder is the reaction of calcium hypochlorite and acid to produce bleach material hypochlorite:

Ca(ClO)2+2HCl = CaCl2+2HClO

Ca (ClO) 2 + CO2 + H2O = CaCO3 left + 2 hclo

Hypochlorous acid is a weak acid that can oxidize pigments and thus achieve bleaching purposes. Add HCI, inhibit hypochlorite ionization, so it can enhance the effect of bleaching powder]