SPECIFICATION FOR Calcium Nitrate

PRODUCT : Calcium Nitrate

FORMULA : 15.5.00 Ca 18.8

GRADE : 100% WATER SOLUBLE FERTILIZER

ORIGIN : IMPORTED

Sr. Particulars Standard Specification As per FCO
1 Total nitrogen per cent by weight, minimum 15.50
2 Nitrate nitrogen as N per cent by weight, minimum 14.40
3 Ammoniacal nitrogen per cent by weight maximum 1.10
4 Water Soluble calcium as per cent by weight, minimum 18.80
5 Matter insoluble in water per cent by weight, maximum 1.50

Use in agriculture

As of 1978, only 170,000 tons/year were produced for applications in fertilizers.[2] The fertilizer grade (15.5-0-0 + 19% Ca) is popular in the greenhouse and hydroponics trades; it contains ammonium nitrate and water, as the "double salt" 5Ca(NO3)2.NH4NO3•10H2O. This is called calcium ammonium nitrate. Formulations lacking ammonia are also known: Ca(NO3)2•4H2O (11.9-0-0 + 16.9%Ca). A liquid formulation (9-0-0 + 11% Ca) is also offered. An anhydrous, air-stable derivative is the urea complex Ca(NO3)2•4[OC(NH2)2], which has been sold as Cal-Urea. Calcium nitrate is also used to control certain plant diseases. For example, dilute calcium nitrate (and calcium chloride) sprays are used to control bitter pit and cork spot in apple trees.[3]