Calcium Carbonate, Purity : 99%

We are offering Calcium Carbonate.
Appearance: White powder Molecular formula: CaCO3 Molecular weight: 100.09
Product specification: Statutory No.：CAS 471-34-1 EINECS 207-439-9：INS 170
Item Index
GB1898-2007 USP32
CaCO3 % 98.0-100.5 98.0-100.5
Loss on drying ≤% 2.0 2.0
Acid-insoluble substance ≤% 0.20 0.20
Iron ≤% ---- 0.1
Heavy metals ≤% ---- 0.002
Lead ≤ppm 3 3
Arsenic ≤ppm 3 3
Fluoride ≤% 0.005 0.005
Mercury ≤ppm 1 0.5
Magnesium and alkali salts ≤% 1.0 1.0
Barium ≤% 0.030 Meet the requirement
Cadmium ≤% 0.0002 ----
Free alkali Meet the requirement ----
Packaging and storage:
25kg/complex paper bag, or according to order. Preserve in well-closed containers.