|
|
Name of index |
FCC |
Conten(as P2O5),% |
59.0–61.0 |
Heavy metal |
15 ppm max. |
Arsenic |
3 ppm max |
Lead |
2 ppm max. |
Water insoluble substance,% |
1.0 max. |
fluoride,% |
10 ppm max. |
viscosity |
(6.5-15)* 10-3 Pa.s |
Formula: |
(KPO3)n n=4~8 |
Molecular weight: |
118n |