|
Item
|
value
|
Technical Grade
|
Food Grade
|
|
Main content(as NaH2PO4.2H2O)
|
%≥
|
98.0
|
98.0
|
|
Phosphorus Pentoxide (as P2O5)
|
%≥
|
44.5
|
44.5
|
|
pH of 1% solution
|
|
4.2-4.8
|
4.2-4.8
|
|
Water insolubles
|
%≤
|
0.10
|
0.10
|
|
Heavy Metals (as pH)
|
%≤
|
|
0.001
|
|
Arsenic (as As )
|
%≤
|
|
0.0003
|
|
Fluoride (as F)
|
%≤
|
|
0.005
|
