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 |