1, the best quality in China 2, the competitive price. 3, ... .8Sulfate: ≤0.05%; ≤0.05%Chloride: ≤0.07; ≤0.07Pb: ≤2μg/g; ≤1μg/g Arsenic salt: ≤2μg/g; ≤2 ... /g; ≤10μg/gAppearance of solution (1.0g, 10ml water): colorless, almost clear Usage: 1, In the medicine field, it can keep ... woven bag, or following your demand sodium gluconate cas no.:527-07-1