Calcium hypochlorite

Calcium hypochlorite
Names
	Other names Hypochlorous acid calcium salt; Bleaching powder; Chloride of lime;
Identifiers
CAS Number	7778-54-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:31342;
ChEMBL	ChEMBL2251447;
ChemSpider	22912 ;
ECHA InfoCard	100.029.007
EC Number	231-908-7;
KEGG	D01727;
PubChem CID	24504;
RTECS number	NH3485000;
UNII	11DXB629VZ;
UN number	1748 2208
CompTox Dashboard (EPA)	DTXSID1029700 ;
	InChI InChI=1S/Ca.2ClO/c;21-2/q+2;2-1 Key: ZKQDCIXGCQPQNV-UHFFFAOYSA-N ; InChI=1S/Cacl.ClO/c;1-2/q+2;2*-1 Key: ZKQDCIXGCQPQNV-UHFFFAOYAV;
	SMILES Cl[O-].[Ca+2].Cl[O-];
Properties
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
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H272, H302, H314, H400
Precautionary statements	P210, P220, P221, P260, P264, P270, P273, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P370+P378, P391, P405, P501
NFPA 704 (fire diamond)	3 0 1 OX
Flash point	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	850 mg/kg (oral, rat)
Safety data sheet (SDS)	ICSC 0638
Related compounds
Other anions	Calcium chloride; Calcium chlorite; Calcium chlorate; Calcium perchlorate;
Other cations	Lithium hypochlorite; Sodium hypochlorite; Potassium hypochlorite; Barium hypochlorite; Silver hypochlorite;
Related compounds	Hypochlorite; Chlorine monoxide; Hypochlorous acid; Methyl hypochlorite;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Calcium hypochlorite is an inorganic compound with chemical formula Ca(Cl O)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, used for water treatment and as a bleaching agent.