Dicopper chloride trihydroxide

Dicopper chloride trihydroxide
Atacamite
Names
IUPAC name
Dicopper(II) chloride trihydroxide
Preferred IUPAC name
Copper trihydroxyl chloride
Other names
tribasic copper chloride, TBCC, copper trihydroxyl chloride, copper hydroxychloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.014.158
EC Number
  • 215-572-9
UNII
  • InChI=1S/ClH.2Cu.3H2O/h1H;;;3*1H2/q;2*+2;;;/p-4
    Key: SKQUUKNCBWILCD-UHFFFAOYSA-J
  • [OH-].[OH-].[OH-].[Cl-].[Cu+2].[Cu+2]
Properties
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
Insoluble in water (pH 6.9 measured by EPA method SW846-9045)
Solubility Insoluble in organic solvents
Structure
Distorted octahedral
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored 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).
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Infobox references

Dicopper chloride trihydroxide is the inorganic compound with chemical formula Cu2(OH)3Cl. It is more often referred to as copper oxychloride. 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.