|
ITEM
|
INDEX
|
|
|
Tech. Grade
|
Food Grade
|
|
|
Na5P3O10 (%):
|
94Min
|
95Min
|
|
P2O5 (%):
|
57Max
|
57Max
|
|
Insolubles in water (%):
|
0.15Max
|
0.05Max
|
|
Fe (%):
|
0.007Max
|
N
|
|
Ph (1% solution):
|
9.2-10
|
9.5-10
|
|
Heavy Metal (As Pb) (%):
|
N
|
0.001Max
|
|
Arsenic (As) (%):
|
N
|
0.0003Max
|
|
Fluoride(F) (%):
|
N
|
0.003Max
|
|
Whiteness(%):
|
90Min
|
90Min
|
|
Density
|
0.35-0.9
|
0.35-0.9
|
|
I type content (%)
|
10-30
|
10-30
|
