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Solubility is the ability of a solid, liquid or gaseous chemical substance (known as solute) to dissolve in a solvent. The solubility of a compound is largely determined by its chemical and physical properties as well as the temperature, pressure, and pH of the solvent.
Copper carbonate is a chemical compound with the formula Cu2CO3(OH)2. It is a water-insoluble green to blue-green powder that is sometimes erroneously called cupric carbonate, and is an analog of the mineral malachite. It is the most common of the carbonates of copper, and is often converted to copper salts for use in a variety of applications.
It is produced by reacting electrolytic copper with concentrated nitric acid and sodium carbonate at high temperatures. It is also commonly converted from the more toxic copper sulfate, which is obtained by treating a solution of refined copper sulfate with hydrochloric acid.
In dry air, it decomposes slowly to copper oxide and carbon dioxide. It can be stabilized by reaction with a small amount of sulfuric acid, and it is used in making pigments and as a fungicide.
It is not soluble in water, but is readily dissolved in acids. It is also produced by heating a mixture of copper sulfate and soda ash at high temperatures. It is used in the manufacture of copper soaps, and it is also a source of copper for industrial applications such as etching and electroplating. It is a hazardous substance, and it should be transported and stored with appropriate precautions.