Copper(II) carbonate

Copper(II) carbonate
Names
	IUPAC name Copper(II) carbonate
	Other names Cupric carbonate, neutral copper carbonate
Identifiers
CAS Number	1184-64-1 [ECHA];
3D model (JSmol)	Interactive image;
ChemSpider	13799;
ECHA InfoCard	100.013.338
EC Number	214-671-4;
PubChem CID	14452;
UNII	9AOA5F11GJ ;
CompTox Dashboard (EPA)	DTXSID6034471 ;
	InChI InChI=1S/CH2O3.Cu/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 Key: GEZOTWYUIKXWOA-UHFFFAOYSA-L;
	SMILES C(=O)([O-])[O-].[Cu+2];
Properties
Chemical formula	CuCO3
Molar mass	123.5549
Appearance	green or blue Powder
Solubility in water	insoluble in water [clarification needed]
Solubility product (Ksp)	10−11.45 ± 0.10 at 25 °C.
Structure
Space group	Pa-C2s (7)
Lattice constant	a = 6.092 Å, b = 4.493 Å, c = 7.030 Å α = 90°, β = 101,34°°, γ = 90°
Coordination geometry	5
Hazards
Flash point	Non-flammable
Related compounds
Other anions	Copper(II) sulfate
Other cations	Nickel(II) carbonate; Zinc carbonate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). (what is ?) Infobox references

Copper(II) carbonate or cupric carbonate is a chemical compound with formula CuCO
₃. At ambient temperatures, it is an ionic solid (a salt) consisting of copper(II) cations Cu²⁺
and carbonate anions CO²⁻
₃.

This compound is rarely encountered because it is difficult to prepare^[2] and readily reacts with water moisture from the air. The terms "copper carbonate", "copper(II) carbonate", and "cupric carbonate" almost always refer (even in chemistry texts) to a basic copper carbonate (or copper(II) carbonate hydroxide), such as Cu
₂(OH)₂CO
₃ (which occurs naturally as the mineral malachite) or Cu
₃(OH)₂(CO
₃)₂ (azurite). For this reason, the qualifier neutral may be used instead of "basic" to refer specifically to CuCO
₃.

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