Usage: Used as a fire-preventio agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder , etc.
Standard:
|
Item |
Unit |
Specification | |||
|
Anhydrous |
Hydrate | ||||
|
Tech grade |
Food grade |
Tech grade |
Food grade | ||
|
Main content： |
% |
98 min |
98 min |
98 min |
98 min |
|
Ph of 1% water solution: |
- |
8. 5-10. 0 |
8. 5-10. 0 |
8. 8-9. 2 |
8. 8-9. 2 |
|
Chloride as Cl: |
% |
-- |
-- |
0. 05 max |
0. 014 max |
|
Sulfate as SO4: |
% |
-- |
-- |
0. 7 max |
0. 25 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 |