Calcium Carbonate

CalCium Carbonate > 98.50%
Acid insolubles < 0.15%
Arsenic < 0.3ppm
Barium Negative
Fluoride < 0.004%
Heavy metals (as Pb) < 0.002%
Lead < 0.20ppm
Magnesium and Alkali Salts < 0.50%
Iron < 0.05%
Mercury < 0.1ppm
Loss on Drying (200 )
< 0.50%

Calcium Carbonate