Calcium hypochlorite is an inorganic compound with chemical formula Ca(ClO)2, also written as Ca(OCl)2. It is a white solid, although commercial samples appear yellow. It strongly smells of chlorine, owing to its slow decomposition in moist air. This compound is relatively stable as a solid and solution and has greater available chlorine than sodium hypochlorite. “Pure” samples have 99.2% active chlorine. Given common industrial purity, an active chlorine content of 65-70% is typical. It is the main active ingredient of commercial products called bleaching powder,[a] used for water treatment and as a bleaching agent.
Calcium hypochlorite is a chemical compound commonly used in various industries due to its strong disinfectant and bleaching properties. Here are some typical applications:
The use of calcium hypochlorite requires careful handling due to its strong oxidative properties and potential for hazardous reactions if not managed properly.
CAS Number | 7778-54-3 |
Chemical formula | Ca(OCl)2 |
Molar mass | 142.98 g·mol-1 |
Appearance | white/gray powder |
Density | 2.35 g/cm3 (20 °C) |
Melting point | 100 °C (212 °F; 373 K) |
Boiling point | 175 °C (347 °F; 448 K) decomposes |
Solubility in water | 21 g/(100 mL) at 25 °C |
Solubility | reacts in alcohol |
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