Usage:Used as soft water agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing, and so on.
Standard:
|
Item |
Unit |
Specification | |||
|
Anhydrous |
Hydrate | ||||
|
Tech grade |
Food grade |
Tech grade |
Food grade | ||
|
Main content： |
% |
98 min |
98 min |
98 min |
98 min |
|
Phosphorus pentoxide as P2O5: |
% |
39.5 min |
39.5 min |
18.3 min |
18.3 min |
|
Sodium oxide as Na2O: |
% |
36-40 |
36-40 |
15.5-19 |
15.5-19 |
|
Sulfate as SO4: |
% |
-- |
0.25 max |
-- |
0.5 max |
|
Heavy metal as Pb: |
% |
-- |
0.001 max |
-- |
0.001 max |
|
Arsenic as As: |
% |
-- |
0.0003 max |
-- |
0.0003 max |
|
Fluoride as F: |
% |
-- |
0.005 max |
-- |
0.005 max |
|
Water insoluble: |
% |
0.05 max |
0.05 max |
0.05 max |
0.05 max |