| Molecular formula:C4H6O4Ca Molecular weight :158.17 Properties: white needle-like crystal or crystalline   powder  Uses: used as calcium nutrition supply for food and   drug  Quality standard: 
                     
                       | Index name  | Index  |  
                       | Assay (anhydrous)% | 98.0-102.0 |  
                       | Ph (1% Aq. solution) | 7.2-8.2 |  
                       | Sulfate (SO4)% | ≤0.1 |  
                       | Chloride (Cl)% | ≤0.05 |  
                       | Heavy metals(Pb)% | ≤0.001 |  
                       | As% | ≤0.0002 |  
                       | Alkali salt and magnesium salts % | ≤1.0 |  
                       | Barium salt (Ba)% | ok  |  
                       | Fluoride (F)% | ≤0.005 |  
                       | Moisture % | ≤2.0 |  Packing:25kg/ double-layer plastic bag lined lined kraft bag or carton.
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