Calcium carbonate powder is a compound, the chemical formula is CaCO3, it is alkaline, basically insoluble in water, soluble in acid. It is a common substance on the earth and exists in rocks such as aragonite, calcite, chalk, limestone, marble and travertine. It is also the main component of animal bones and shells.
Data Sheet
Items | Standards(%) | |||
Calcium carbonate | Spection | |||
CaCo3(Dry base) | 98%-100% | |||
Loss on drying | ≤2 | |||
Acid-insoluble substance | ≤0.2 | |||
Iron | ≤0.1 | |||
Pb(Heavy metals) | ≤0.002 | |||
Barium | ≤Pass the test | |||
Lead | ≤3 | |||
Limit of fluoride | ≤0.005 | |||
Magnesium and alkali salts | ≤1.0 |




1.As filler for plastics, paper, rubber, paint, ink,cable, etc., it is one of the most widely used fillers.
2.Light calcium carbonate can be used as leavening agent, flour treating agent, anti-coagulation agent, acidity regulator, nutrient strengthening agent, curing agent, etc.