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Industrial calcium nitrate

时间:2019-08-19 12:05source:未知 author:admin click: second
Molecular formula: Ca(NO3)2.4H2O molecular weight: 236.149
 
Quality standard: HG T 3787-2005
 
Physicochemical properties: Calcium nitrate tetrahydrate is a white columnar crystal, belonging to monoclinic system, with two crystal forms of alpha and beta. The relative density is 1.82, the melting point is 39.7 C. It decomposes at 40 C. When heated to 151 C, it dehydrates completely into anhydrous calcium nitrate water. When heated to about 500 C, calcium nitrate decomposes into calcium nitrite and releases oxygen. When heated, it decomposes into calcium oxide and nitric oxide gas. It is soluble in water, methanol, ethanol, acetone, methyl acetate and liquid ammonia. Calcium nitrate is an oxidant with hygroscopicity and easy to be deliquescent in air.
 
Properties: Colorless crystals, easy to deliquescence, two kinds of crystals, A-shaped crystals, relative density 1.896, melting point 39.7 C, heating to 132 C decomposition. Soluble in water, ethanol and acetone. It is insoluble in nitric acid and oxidizable. Contact with flammable products can cause combustion, corrosiveness and burns.
 
Packaging: Plastic woven bags or paper-plastic composite bags, lined with plastic bags, net weight 25/50/500/1000KG, or according to customer requirements.
 
Technical Indicators:
 
Inspection items, indicators
 
Calcium nitrate content [measured by Ca(NO3)2.4H 2O]%>99
 
Water insoluble matter content%<0.01
 
Sulfate content [in terms of SO42-]%<0.02
 
Heavy metal content [calculated by Pb2+]%<0.0005
 
Iron content [calculated by Pb2+]%<0.0007
 
Chloride [calculated by Cl-]%<0.01
 
Nitrogen [calculated by N]%>11.75
 
Calcium content [calculated by Ca]%>16.6
 
PH 5.0-7.0
 
Usage: Mainly used for refrigerant and cement antifreeze agent, phosphating agent in iron and steel industry and municipal sewage treatment, also used for manufacturing pyrotechnics and other nitrates, and as quick-acting fertilizer in acidic soil in agriculture.
 
(Responsible Editor:admin)