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Calcium hypochlorite

CAS Number
7778-54-3
EC Number
231-908-7
Chemical Formula
Ca.2ClHO
Molecular Weight
142.98 g/mol

Description

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 across municipal, industrial, and food processing operations. It delivers rapid microbial kill and oxidative action at relatively low application concentrations. This makes it a cost-effective alternative to liquid chlorine for many facilities requiring reliable sanitation. In water treatment, it is dosed into municipal drinking water systems, swimming pools, and wastewater facilities. These applications help achieve reliable disinfection and consistent algae control in various environments. Food processing plants use it to sanitize surfaces, equipment, and produce wash water in compliance with food safety protocols. This ensures that microbial levels remain within safe limits during production. Textile and paper manufacturers apply it to bleach natural fibers and pulp. This process achieves consistent whiteness without the handling complexity often associated with gaseous chlorine systems. Personal care and household cleaning product formulators incorporate it into disinfecting powders and hard-surface cleaners. It is preferred where sustained chlorine release is required for long-term efficacy. Calcium hypochlorite is supplied as granules, tablets, and powder, with active chlorine content typically ranging from 65% to 70%. Food-grade and technical-grade designations are standard across the market. Tablet forms are common for pool and water treatment applications due to controlled dissolution rates. These formats allow for precise dosing and easier handling in industrial and commercial settings. Contact us for supply of Calcium hypochlorite Request Quote

Other Names (Synonyms)

Calcium hypochloride | Hypochlorous acid, calcium salt | Bleaching powder | Losantin | Pittchlor | Pittcide | Pittclor | Caporit

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point100 °C
Density2.35 g/cm³
AppearanceCalcium hypochlorite is a white powder, granule, or pellets with a strong chlorine-like odor.
ColorWhite to off-white or faint green
OdorChlorine-like odor
FormTablets
Water Solubility200 g/L (20 ºC) (dec.)
Refractive Index1.545

Safety & Handling

Danger
GHS03· OxidizerGHS05· CorrosiveGHS07· IrritantGHS09· EnvironmentGHS06· ToxicGHS08· Health Hazard

Hazard Statements

H271May cause fire or explosion; strong Oxidizer
H272May intensify fire; oxidizer
H302Harmful if swallowed
H313May be harmful in contact with skin
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
H330Fatal if inhaled
H335May cause respiratory irritation
H371May cause damage to organs
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220Keep away from clothing and other combustible materials.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P283Wear fire-resistant/flame-retardant clothing.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P391Collect spillage.
P405Store locked up.
P420Store away from other materials.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P360IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P375Evacuate area.

Trade & Regulatory

HS Code28281000
UN Number1748
ADR Class5.1
Packing GroupII
Storage Class5.1A - Strongly oxidizing hazardous materials
WGK (Germany)2