Calcium Acetate C 4 H 6 CaO 4 .H 2 O 176.18 Appearance: White powder Product specification: Item Index GB15572-1995 USP27* C 4 H 6 CaO 4 % 98.0-100.2 99.0-100.5 pH 7.2-8.2 6.3-9.6 Sulfate d % 0.1 0.06 Nitrate d % -- Meets the requirements Chloride d % 0.05 0.05 Heavy metals d % 0.0025 0.0025 Lead d % -- 0.001 Arsenic 0.0002 % 3 ppm Magnesium and alkali salts d % 1.0 -- Barium Meets the requirements -- Water d % 7.0 7.0 Fluoride d % 0.005 0.005 Readily oxidizable substances -- Meets the requirements Organic volatile impurities -- Meets the requirements * not for use in hemodialysis or peritoneal dialysis. Packaging and storage: Preserve in well-closed container, 20kg / paper plastic complex bag, or according to order .