Items | Standard |
Appearance | white powder |
P2O5 | 68% Min |
Inactive phosphates as P2O5 | 7.5%max |
Fe | 0.05%max |
Water insoluble | 0.1%max |
PH of 1% solution | 3.0-9.0 |
Loss on ignition | 1% max |
As | 1ppm max |
Pb | 1ppm max |
Heavy Metals as Pb | 10ppm max |
Cd | 1ppm max |
Hg | 1ppm max |
Flurode as F: | 10ppm max |