ItemIndexIndustrial gradeAgricultural gradeCa(NO3)24H2O % 99.099.0Total N % 11.511.5CaO % 23.023.0Insoluble substance in water % 0.010.01Range of PH value 4.5-6.54.5-6.5Heavy metal % 0.00050.001Sulphate % 0.020.02Fe % 0.0020.01Chloride % 0.0050.005
ITEM SPECIFICATION TEST RESULTS Appearance White Powder White Powder Purity 99.4% MIN 99.6% Nitrogen 13.5% MIN 13.6% Potassium oxide 46% MIN 46% Moisture 0.10% MAX 0.09% Chloride(as C1) 0.01-0.03 MAX 0.015 Sulphate(as SO4) 0.01% MAX 0.009% Insoluble matter in 0.01% MAX 0.009% Fe 0.003% MAX 0.002% Hygroscopicity 0.25% MAX 0.24%