Chemical Name: Triple super phosphate (TSP) 46%
Other chemical name: Calcium phosphate primary; Calcium biphosphate; Calcium phosphate, monobasic; Calcium dihydrogen phosphate; Monocalcium phosphate; TSP
Molecular Formula : Ca(H2PO4)2·H2O
Molecular weight: 234.05
CAS No: 7758-23-8
EINECS No:231-837-1
Properties
Grey granules;
Relative density is 2.22g/cm3.
Acidic, easily soluble in hydrochloric acid, nitric acid and water, hardly soluble in ethanol.
Solubility in 100 ml water at 30℃ is 1.8g.
Water solution is acidic, and turns into dicalcium phosphate after heat.
Easily cake after moisture absorption.
Loses water after heat(100℃), P2O5 not easily degradate.
Decomposes into calcium metaphosphate when heated to 203℃.
Specifications
Items | Specifications |
Appearance | Grey granules |
P2O5 | 46.0% min |
Effective P2O5 | 42.0% max |
Soluble P2O5 | 37.0% min |
Moisture | 4.0% max |
Free acid | 5.0% max |
Granularity(1-4mm) | 90% min |
Hardness | 10N |
Packing
25 kg plastic woven bag, or according to customers requirements.
Storage
(1) SSP can not mix with plant ash, lime, lime or alkaline soil nitrogen fertilizer
(2) Superphosphate in a large number of storage and storage process should pay special attention to moisture, such as open dumping, should cover rain cover, to prevent surface water wet, to avoid the loss of dissolved phosphorus and moisture caking, resulting in deterioration of physical properties of materials.
(3) Long-term pile superphosphate, a certain interval of time should be with turning once, and ventilation should be stacked in a dry place.
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