Copper(II) carbonate
Other names	copper carbonate, cupric carbonate, basic copper carbonate
Identifiers
CAS number	12069-69-1
Properties
Molecular formula	CuCO3
Molar mass	123.56 g/mol
Density	3.9 g/cm3
Melting point	200°C Image File history File links Basic_copper(II)_carbonate. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. ... A chemical formula is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... Molar mass is the mass of one mole of a chemical element or chemical compound. ... For other uses, see Density (disambiguation). ... The melting point of a crystalline solid is the temperature range at which it changes state from solid to liquid. ...
Boiling point	None Applicable (will decompose when heated) Italic text This article is about the boiling point of liquids. ...
Solubility in other solvents	Insoluble in water
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Copper(II) carbonate (often called copper carbonate or cupric carbonate) is a blue-green compound (chemical formula CuCO₃) forming most of the patina one sees on weathered brass, bronze, and copper. The colour can vary from bright blue to green, because there may be a mixture of both copper carbonate and basic copper carbonate in various stages of hydration. It was formerly much used as a pigment, and is still in use for artist's colours. It has also been used in some types of make-up, like lipstick, although it can also be poisonous to humans. It also has been used for many years as an effective algaecide in farm ponds and in aquaculture operations.Copper Carbonate was the first compound to be broken down into several seperate elements (copper, carbon, and oxogen). It was broken down in 1794 by the French Chemest Joseph Louis Proust (1754-1826) Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent. ... The plimsoll symbol as used in shipping In chemistry, the standard state of a material is its state at 1 bar (100 kilopascals exactly). ... Look up chemical compound in Wiktionary, the free dictionary. ... The Statue of Liberty gets its green color from the patina formed on its copper surface Patinas are chemical compounds formed on the surface of metals. ... “Brazen” redirects here. ... Assorted ancient Bronze castings found as part of a cache, probably intended for recycling. ... Copper has played a significant part in the history of mankind, which has used the easily accessible uncompounded metal for nearly 10,000 years. ... In chemistry, hydration is the condition of being combined with water. ... Natural Ultramarine pigment in powdered form. ... Lipstick is a cosmetic product containing pigments, oils, waxes, and emollients that applies color and texture to the lips. ...

"Copper in moist air slowly acquires a dull green coating. The green material is a 1:1 mole mixture of Cu(OH)₂ and CuCO₃:^[1]"

2Cu(s) + H₂O(g) + CO₂ + O₂ → Cu(OH)₂ + CuCO₃(s)

Copper carbonate decomposes at high temperatures, giving off carbon dioxide and leaving copper(II) oxide. Carbon dioxide is a chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. ... Copper(II) oxide or cupric oxide (CuO) is the higher oxide of copper. ...

CuCO₃(s) → CuO(s) + CO₂(g)

Basic copper(II) carbonate occurs naturally as malachite (CuCO₃.Cu(OH)₂) and azurite (Cu₃(CO₃)₂(OH)₂). This article is about the mineral. ... // Azurite is a soft, deep blue copper mineral produced by weathering of copper ore deposits. ...

External links

• National Pollutant Inventory - Copper and compounds fact sheet

• Safety Data