application:it is colorless transparent crystal.It is soluble in water and alcohol.It is easily deliquesce in the air.It can supply calcium and nitrogen to plants rapidly.It can be used all kinds of crops,also be used in greenhouse and large-area farmland.It is mainly used in the industries of coolant,antifreeze of cement and rubber gloves etc. Specification:Purity:99.0%min,Nitrogen:11.8%min,Cao:23.6%min,water insoluble:0.01%max,heavy metal:0.001%max,sulphate:0.03%max,Iron:0.003%max,Cl:0.005%max,Ph:5-7