| ≥1 piece |
|
No.
|
Specifications
|
Industrial Grade
|
Food Grade
|
|
1
|
Total phosphate, as P 2 O 5 %≥
|
68.0
|
68.0
|
|
2
|
Inactive phosphate, as P 2 O 5 %≤
|
7.5
|
7.5
|
|
3
|
Iron, as Fe %≤
|
0.05
|
0.05
|
|
4
|
Ph value (1% solution) %≤
|
5.8-7.3
|
5.8-6.5
|
|
5
|
Solubility
|
Qualified
|
Qualified
|
|
6
|
Heavy metals, as Pb %≤
|
|
0.001
|
|
7
|
Arsenic, as As%≤
|
|
0.0003
|
|
8
|
Fluoride as F%≤
|
|
0.003
|
|
9
|
Water insoluble %≤
|
0.05
|
0.06
|