Calcium Carbonate (Calcium Carbonate) is 98% CaO 56.03%,CO2 43.97%
Relative molecular weight :100.09
Oil absorption rate: <48%
Whiteness: 92 +
Specific gravity is 2.711

Calcium carbonate concentration was 8.7 1029
The solubility is 0.0014
PH value of 8.3 ~ 9.0
The relative density is 2.7~2.9
Mohs hardness 3~4
White powder, colorless and tasteless. Stable in air. It's almost insoluble in water, insoluble in alcohol. In case of dilute acetic acid, dilute hydrochloric acid, dilute nitric acid bubble boiling, and dissolution. Heated to 898 ºC is decomposed into calcium oxide and carbon dioxide.
Grinding Calcite Carbonate (GCC) is a calcium Carbonate powder produced by mechanical crushing method with Calcite, chalk, marble and other ores as raw materials. It is an important and widely used inorganic salt. Heavy Calcium Carbonate, also known as Ground Calcium Carbonate (GCC, Kotamite), is made by directly crushing natural calcite, limestone, chalk and shell by mechanical method. Because its settlement volume (1.1-1.9ml /g) is smaller than that of chemically produced light calcium carbonate (2.4-2.8ml /g), it is called heavy calcium carbonate.
Widely used in artificial floor tile, rubber, plastic, paper, paint, paint, ink, cable, construction supplies, food, medicine, textile, feed, toothpaste and other daily chemical industry