Dicopper chloride trihydroxide

Dicopper chloride trihydroxide
Names
	IUPAC name Dicopper(II) chloride trihydroxide
	Preferred IUPAC name Copper trihydroxyl chloride
Identifiers
CAS Number	1332-65-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	10142932;
ECHA InfoCard	100.014.158
EC Number	215-572-9;
PubChem CID	11969527;
UNII	76712031PG;
CompTox Dashboard (EPA)	DTXSID6034475 ;
	InChI InChI=1S/ClH.2Cu.3H2O/h1H;;;31H2/q;2+2;;;/p-4 Key: SKQUUKNCBWILCD-UHFFFAOYSA-J;
	SMILES [OH-].[OH-].[OH-].[Cl-].[Cu+2].[Cu+2];
Properties
Chemical formula	Cu2(OH)3Cl
Molar mass	213.56 g·mol−1
Appearance	Green crystalline solid
Density	3.5 g/cm3
Melting point	250 °C; 482 °F; 523 K
Solubility in water	Insoluble in water (pH 6.9 measured by EPA method SW846-9045)
Solubility	Insoluble in organic solvents
Structure
Crystal structure	Atacamite: orthorhombic; Paratacamite: rhombohedral; Clinoatacamite: monoclinic; Botallackite: monoclinic;
Coordination geometry	Distorted octahedral
Hazards
NFPA 704 (fire diamond)	1 0 0
Flash point	Non-flammable
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1 mg/m3 (as Cu)
REL (Recommended)	TWA 1 mg/m3 (as Cu)
IDLH (Immediate danger)	TWA 100 mg/m3 (as Cu)
Safety data sheet (SDS)
	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

Dicopper chloride trihydroxide is the compound with chemical formula Cu₂(O H)₃Cl. It is often referred to as tribasic copper chloride (TBCC), copper trihydroxyl chloride or copper hydroxychloride. This greenish substance is encountered as the minerals atacamite, paratacamite, and botallackite. Similar materials are assigned to green solids formed upon corrosion of various copper objects.

These materials have been used in agriculture.