Calcium hypochlorite

Calcium hypochlorite (CAS 7778-54-3), also known as bleaching powder, is a high-active chlorine compound used as a disinfectant, oxidizer, and bleaching agent.

Where is Calcium hypochlorite used?

• Water treatment: dosed into municipal drinking water systems, swimming pools, and wastewater facilities
• Food processing: sanitize surfaces, equipment, and produce wash water
• Textile and paper: bleach natural fibers and pulp
• Personal care and household cleaning: disinfecting powders and hard-surface cleaners
• It delivers rapid microbial kill and oxidative action at low concentrations.
• Used to clean hydrazine spills.
• Used for wastewater treatment in gold mining to destroy cyanide.
• Used as a well cleaning aid.
• In agriculture, used in irrigation systems to eliminate pathogens in water and prevent crop diseases.

Formulation notes

• In solution, can be used as a general-purpose disinfectant, but sodium hypochlorite (bleach) is generally preferred due to calcium residue (which hardens water).

Typical specification

• Available in tablet form.
• Not highly soluble in hard water; preferably used in soft to medium-hard water.
• Grade A has a minimum active chlorine mass fraction of 70%.

Regulatory status

• Classified under UN transport as Class 5.1 (oxidizing substances) with Packing Group II.
• Use as a biocide is approved in the EEA and/or Switzerland for disinfection, veterinary hygiene, food and animal feed, and drinking water.
• Registered under KKDIK and shipped with a Turkish safety data sheet (SDS).

Storage, packaging and handling

• Must be kept away from flammable materials and acids.
• Should be stored in a cool, dry, well-ventilated place.
• Must not be transported together with food and feedstuffs.

Frequently asked questions about Calcium hypochlorite

What are the primary uses and applications of calcium hypochlorite?

Calcium hypochlorite is used for waste gas neutralization.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.