|
Specifications
|
Technical Grade
|
Food Grade
|
|
Main content
|
98.0% min.
|
98.0% min.
|
|
P2O5
|
18.3% min.
|
18.3% min.
|
|
Sodium oxide, as Na2O
|
15.5-19.0%
|
15.5-19.0%
|
|
Sulfate, as SO4
|
0.5% max.
|
0.5% max.
|
|
Heavy metal, as Pb
|
-
|
0.001% max.
|
|
Arsenic, as As
|
-
|
0.0003% max.
|
|
Fluoride, as F
|
-
|
0.002% max.
|
|
Water insoluble
|
0.10% max.
|
0.05% max.
|
|
|
