Calcium hypochlorite is the main active ingredient of commercial products called bleaching powder, chlorine powder, or chlorinated lime, used for water treatment and as a bleaching agent.
Calcium hypochloride
Hypochlorous acid, calcium salt
Losantin
Chemical Formula
Ca(ClO)₂
HSN Code
28281010
CAS Number
7778-54-3
General Description
Calcium hypochlorite is the main active ingredient of commercial products called bleaching powder, chlorine powder, or chlorinated lime, used for water treatment and as a bleaching agent. This compound is relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach). It is a white solid, although commercial samples appear yellow. It strongly smells of chlorine, owing to its slow decomposition in moist air. It is not highly soluble in hard water, and is more preferably used in soft to medium-hard water. It has two forms: dry (anhydrous); and hydrated (hydrous).
Characteristics
Molar Weight
142.974 g/mol
Melting Point
100 °C
Boiling Point
175 °C
Flash Point
175 °C
Density
2.35 g/cc
Forms
Liquid (clear)
, Colorless
Packing
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Uses and Applications
Key Applications
Calcium hypochlorite is an ingredient in bleaching powder, used for bleaching cotton and linen.
It is used in bathroom cleaners, household disinfectant sprays, moss and algae removers, and weedkillers.
It is used as a sanitizer in outdoor swimming pools in combination with a cyanuric acid stabilizer, which reduces the loss of chlorine due to ultraviolet radiation.
It is used for the disinfection of drinking water.