нитрат кальция

Calcium Nitrate 99.0%min Chemical formula: Ca(NO3)2·4H2O Formula weight:236.149 White powder crystal Class 5.1, UN No.1454 Specifications (Technical Standards:Q/WCX001--2005) Item unit Ind.G. Agr.G. Assay %≥ 99.0 99.0 Calcium nitrate %≥ 68-71 67-71 Calcium oxide %≥ 23.4 23.4 Calcium %≥ 16.6 16.6 Ammonia %≤ 0.003 0.003 Carbonic acid %≤ 0.006 0.006 Nitride %≤ 0.001 0.001 Iron %≤ 0.0007 0.0007 Water insoluble %≤ 0.01 0.01 PH value 4.0-7.0 4.0-7.0 Nitrogen(N) %≥ 11.74 Property: white powder crystal, soluble in water,density:1.896, decompose at about 40,while being heated up to 150,it will completely dehydrate and turn into anhydrous calcium nitrite,when temperature up to 500, it will decompose into calcium nitrite and oxygen, if the teprature continue to go up,it will eventually become calcum oxide and nitrogen oxide,it is freely soluble in methanol,alcohol,acetone,methy acetate and liquid ammonia. It is oxidizer,it is liable to deliquesce in the air. Usage: (1) agricuture:it is a new high efficiency compound fertilizer which can provide N and quick result Ca,it has been widely used in greenhouse and large acreage farmland. (2) industry: it is used for refrigerant,cement antifreezer,bonderite of steel industry,making fireworks and other nitrate.