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Triple superphosphate is a component of many proprietary fertilisers. It primarily consists of monocalcium phosphate, Ca(H 2 PO 4) 2. It is obtained by treating phosphate rock with phosphoric acid. Many proprietary fertilisers are derived from triple superphosphate, for example by blending with ammonium sulfate and potassium chloride.
Phosphate rich organic manure is a type of fertilizer used as an alternative to diammonium phosphate and single super phosphate. Phosphorus is required by all plants but is limited in soil, creating a problem in agriculture In many areas phosphorus must be added to soil for the extensive plant growth that is desired for crop production.
A mixture of single superphosphate and triple superphosphate is called double superphosphate. More than 90% of a typical superphosphate fertilizer is water-soluble. The main potassium-based straight fertilizer is muriate of potash (MOP, 95–99% KCl). It is typically available as 0-0-60 or 0-0-62 fertilizer.
This solid is called triple superphosphate. Several million tons are produced annually for use as fertilizers. Using sulfuric acid, fluorapatite is converted to a mixture of Ca(H 2 PO 4) 2 and CaSO 4. This solid is called single superphosphate.
In the beginning it only produced Triple Super Phosphate (TSP) fertilizer and from 1990 is started producing Single superphosphate fertilizer also. The fertilizer complex is located Karnaphuli river bank at Patenga, Chittagong. [3]
Bone ash can be used alone as an organic fertilizer or it can be treated with sulfuric acid to form a "single superphosphate" fertilizer which is more water soluble: [citation needed] Ca 3 (PO 4) 2 + 2 H 2 SO 4 + 5 H 2 O → 2 CaSO 4 ·2H 2 O + Ca(H 2 PO 4) 2 ·H 2 O