Basic copper carbonate, dilute hydrochloric acid → copper chloride, water, carbon dioxide. The chemical equation is: Cu2(OH)2CO3 4HCl=2CuCl2 3H2O CO2↑. Basic copper carbonate, also known as patina and patina, has a chemical formula of Cu?(OH)?CO?. It is a substance produced by the reaction of copper with oxygen, carbon dioxide, water vapor and other substances in the air.

Basic copper carbonate uses:

1. Used in catalysts, fireworks, pesticides, pigments, feeds, fungicides, electroplating, anti-corrosion and other industries and Manufacture of copper compounds.

2. Used as analytical reagents and pesticides.

3. Used in organic catalysts, pyrotechnics manufacturing and pigments. In agriculture, it is used as a preventive agent for plant smut, a pesticide, an antidote for phosphorus poisoning, and a fungicide for seeds; mixed with asphalt to prevent livestock and wild rats from chewing saplings; used as a copper additive in feed , used as dealkalizing agent and raw material for producing copper compounds during crude oil storage. It can also be used for electroplating, anti-corrosion and analytical reagents.

4. Paint colors, fireworks, pesticides, seed treatment fungicides, preparation of other copper salts, solid phosphor activators.