Copper(II) carbonate

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 article is about the rare neutral carbonate. For the "copper carbonate" of commerce, see basic copper carbonate.
Copper(II) carbonate
Names
IUPAC name
Copper(II) carbonate
Other names
Cupric carbonate, neutral copper carbonate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.338
EC Number
  • 214-671-4
UNII
  • InChI=1S/CH2O3.Cu/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
    Key: GEZOTWYUIKXWOA-UHFFFAOYSA-L
  • C(=O)([O-])[O-].[Cu+2]
Properties
CuCO3
Molar mass 123.5549
Appearance green or blue Powder
insoluble in water
10−11.45 ± 0.10 at 25 °C.
Structure
Pa-C2s (7)
a = 6.092 Å, b = 4.493 Å, c = 7.030 Å
α = 90°, β = 101,34°°, γ = 90°
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).
N (what is YN ?)
Infobox references

This compound is rarely encountered because it is difficult to prepare 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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