Chemical formula: KH2PO4
Molecular weight: 136.09
Standard executed: HG/T2321-1992
Properties: White or colorless crystal, easily soluble in water, relative density at 2.338, melting point at 252.6℃, and pH value of 1% water solution is 4.5.
No
Specification
Industrial grade
Superior grade
1
Main content %≥
99.0
99.0
2
P2O5 %≥
51.50
51.50
3
K2O %≥
34.0
34.0
4
Chloride, as Cl %≤
0.2
0.02
5
pH of 1% water solution
4.4-4.8
4.4-4.8
6
Moisture %≤
0.20
0.20
7
Heavy metal, as Pb %≤ 0.001
8
Arsenic, as As %≤ 0.0003
9
Fluoride ,as F %≤
0.002
10
Water insoluble %≤
0.10
0.05
Application: Used to manufacture metaphosphate in medical or food industry. Used as a high effective K and P compound fertilizer. It contains totally 86% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer.
Packaging: Plastic-woven sack with polythene inner bag.Net weight: 25kg, 50kg or 1000kg. Stored in ventilated and dry place.
