Heavy calcium carbonate powder is a common inorganic compound, with the chemical formula CaCO3. It is composed of calcium ions (Ca2+) and carbonate ions (CO32-).

The characteristics of heavy calcium carbonate powder include:

High Density: The density of heavy calcium carbonate powder is greater than that of light calcium carbonate, typically ranging between 2.7-2.9 g/cm³.

2. White and Colorless: Heavy calcium carbonate powder is usually in a white powdered form, without any distinct color.

3. High thermal stability: Heavy calcium carbonate powder maintains good stability at high temperatures and can be decomposed into calcium oxide above 800°C.

4. Wide Applications: Heavy calcium carbonate powder is widely used in various fields, such as building materials, plastics, paints, rubber, paper, etc.

Ground calcium carbonate can be used as a filler in building materials to enhance hardness and strength. In plastics and rubber, it serves as a plasticizer and filler, improving the material's properties and workability.

Additionally, heavy calcium carbonate powder is also used in the production of paints and wallpaper to enhance the product's brightness and luster. It serves as an absorbent and stabilizer.

In summary, calcium carbonate powder is a common inorganic compound characterized by high density, colorless and white, and high thermal stability, widely used in construction materials, plastics, coatings, rubber, paper, and other fields.