A white powder that decomposes on contact with water and has the characteristic odor of gaseous chlorine: regarded, when dry, as a mixed calcium hypochlorite-chloride, used as a commercial bleach for wood pulp, textiles, oils, and soaps, and in laundering as a decolorizer and disinfectant.
- Bleaching powder is a pale yellowish powder existing with a strong smell of chlorine.
- It is soluble in water but due to the presence of impurities, we never observe a clear solution.
- Its chemical formula is CaOCl2 with its chemical name as Calcium hypochlorite.
- 2. Uses of Bleaching Powder
- It is used for bleaching dirty clothes in the laundry, as a bleaching agent for cotton and linen in the textile industry.
- It is a strong oxidizing agent hence used as an oxidizer in many industries.
- It is used as a disinfectant which is used for disinfecting water to make potable water.
- Stable bleaching powder is widely used as a disinfectant in water purification, as well as in the textile and pulp and paper industries.
- ABCIL manufactures stable bleaching powder under the brand names of Shaktiman, Vikram and Lion.
Stable bleaching powder is used to disinfect ponds or seawater where shrimps and prawns are grown. In addition, it is used as a disinfectant and deodorising agent to reduce the Biological Oxygen Demand (BOD) concentration in water.
Home and personal care
Stable bleaching powder is used to sterilise linen and remove stains.
Paper and pulp
Stable bleaching powder is used to bleach pulp and straw.
Stable bleaching powder finds wide use in the textile industry as a bleaching agent for cotton yarn and cloth.
SBP is used as a disinfectant and deodorising agent to reduce the BOD concentration and control cyanides in water. It is also used in swimming pools as a disinfectant and cleaning agent, apart from controlling algae.