|
Index name
|
Industrial grade
|
Food Grade
|
|
Main content (based on P2O5) %≥
|
68.0
|
68.0
|
|
Inactive phosphate(based on P2O5) %≥
|
7.5
|
7.5
|
|
PH value(1% aqueous solution)
|
5.8-7.3
|
5.8-6.5
|
|
Iron (Fe) %≤
|
0.05
|
0.05
|
|
Solubility
|
Qualified
|
Qualified
|
|
Arsenic(based on As) %≤
|
|
0.0003
|
|
Fluoride(based on F) %≤
|
|
0.003
|
|
Heavy metal(based on Pb) %≤
|
|
0.001
|
|
Water insoluble %≤
|
0.05
|
0.06
|
[Use]: Used in the industries including oil field, paper making, textile, printing dyeing, petrochemical, leather and building material etc. as water softener, flotation agent,dispersant, high temperature binding agent and additive, quality modifier, PH value regulator, metallic ion chelating agent and bulking agent etc..