Usage:Used for water treatment to boiler, also as buffering agent to acidity, detergent, cleaning agent, dyeing flux, for tanning and electroplating. For food additive it is mainly used as buffering agent, emulsification agent, nourishment, 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
Phosphorous pentoxide as P2O5:
%
58.0 min
58.0 min
44.6 min
44.6 min
Ph of 1% water solution:
-
4.2-4.8
4.2-4.8
4.2-4.8
4.2-4.8
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
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