Origin |
China |
Brand Name |
Ally |
Calcium Nitrate
1. Physicochemical Properties
Calcium nitrate tetrahydrate is a white columnar shape crystal of monoclinic system including a and crystallographic form. Specific Density: 1.82, Melting Point: 39.7º C. It decomposes at 40º C or so, and converts into anhydrous calcium nitrate due to thorough dehydration when heated at 151º C. When heated furthermore to 500º C, calcium nitrate will first break down to calcium nitrite accompanied with oxygen gas emitting, then degrade to calcium oxide and nitrogen oxide. The product is apt to dissolve in water, methanol, ethanol, acetone, methyl acetate and liquid ammonia. The calcium nitrate is used as an oxidizer with hygroscopic property, resulting in extreme deliquescence in air.
2.Applications and Usages:
It is mainly used as refrigerant and cement anti-freezer, phosphorizing agent in steel industry, as well as in manufacture of fireworks and other nitrates.
It also is applied in producing readily available fertilizer in agriculture.
3.spec.
|
Item
|
Chemical pure
|
Specified grade
|
Premium grade
|
Salable product
|
|
Ca ( NO3)2·4H2O,%
|
min
|
99.0
|
99.0
|
99.0
|
98.0
|
|
Insoluble substance in water,%
|
max
|
0.01
|
0.05
|
0.1
|
0.2
|
|
Chloride(Cl),%
|
max
|
0.01
|
0.005
|
0.01
|
0.05
|
|
Sulfate(SO4),%
|
max
|
0.03
|
0.02
|
0.05
|
0.1
|
|
Ferrum (Fe),%
|
max
|
0.0005
|
0.02
|
0.05
|
0.1
|
|
Heavy metal(base on Pd),%
|
max
|
0.001
|
0.005
|
0.005
|
0.05
|
|
Alkali metals & alkaline earth(base on sulphate),%
|
max
|
0.4
|
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|
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|
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|
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