... into the refrigerant, rubber industry,and firework,electronic tubes Calcium nitrate is used into the refrigerant, rubber industry,and firework, ... 4Molecular Weight: 236.15Chemical Formula: Ca(NO3)2 4H2OProperties: Calcium Nitrate is colorless and transparent monoclinic crystal. It easily dissolve in ... 2: 68--71%Fe: 7PPM max.Chloride: 0.001% max.Sulfate: 0.03% max.Water Insoluble: 0.01% max.Heavy Metal ...