Calcium Nitrate Formula:Ca(NO3)2íñ4H2O Formula weight:236.15 Properties and applications: Calcium Nitrate is colorless transparene crystal, It is soluble in water and alcohol. It is easily deliquesce in the air. It can be used in agriculture as quick fertilizer, and firework electronic tubes etc. Inspection Item Unit Ind.G. Agri.G. Assay % 99.0 99.0 pH value ---- 5--7 5--7 Water Insolubles % 0.01 0.01 Heavy Metal % 0.001 0.001 Sulphates % 0.03 0.03 Iron % 0.002 0.003 Chloride % 0.005 0.005 Calcium oxide % ---- 23.4 Nitrogen % ---- 11.76. Packing:In 25/50kg net PP/PE bag or the demanding of customer.