Chemical formula: KH2PO4
Molecular weight: 136.09
Executive Standard: HG2321-1992
Properties: White or colorless crystals, relative density 2.338, melting point 252.6°C, soluble in water, pH value of 1% aqueous solution is 4.5.
Technical indicators:
No.
Index name
Industrial grade
Gifted class
1
Main content (in KH2PO4) %≥
99.0
99.0
2
P2O5 %≥
51.50
51.50
3
K2O %≥
34.0
34.0
4
Chloride (measured as Cl) %
0.2
0.02
5
pH value (1% aqueous solution)
4.4-4.8
4.4-4.8
6
Water %
0.20
0.20
7
Heavy metal (Pb) %
-
0.001
8
Arsenic (calculated as As) %≤
-
0.0003
9
Fluoride (in F) %≤
-
0.002
10
Water insoluble matter %≤
0.10
0.05
Uses: mainly used in medicine, food industry and manufacture of metaphosphate; in agriculture used as a high-efficiency compound fertilizer, the total nutrients K2O + P2O5) is 86%, is the basis for the preparation of N, P, K three yuan compound fertilizer .
Packing: Inner plastic outer packing, net weight 25, 50, 1000Kg per bag, stored in ventilated and dry place.