Sell Oyster shell powder

Description

Appearance: White powder                Molecular formula: CaCO3       Molecular weight:**0.*9
Product specification:                    Statutory No: CAS *******1  GB*******0（No.*6.**5）

Item	Index（QB ***3—***9）
CaCO3 (dry basis),%                            ≥	*7.*0
Loss on drying,%                               ≤	1.0
Acid-insoluble substances,%                     ≤	0.*0
Barium，%                                    ≤	0.**0
Arsenic（As），       mg/kg                    ≤	3
Heavy Metals（Pb），mg/kg                    ≤	*0
Cadmium(Cd),         mg/kg                    ≤	0.2
Fineness,mesh                              ≥	**0

Packaging and storage:
*5kg/complex paper bag, or according to order. Preserve in well-closed containers.