Criteria | Specifications |
Appearance | Free flowing white powder without any visible contamination |
P2O5 - content as is | 56% Min |
STPP - content as is | 94% Min |
Other Phosphates | 6% Max |
Temperature Rise Test (TRT) | 10-14°C |
Phase I Content | 16-32% |
Volatile Matter (loss at 135°C - 4h) | 0.5-1% |
Insoluble matter in water | 0.1% Max |
Sodium Sulphate Content | 1.5% Max |
Sodium Chloride Content | 0.5% Max |
Fluoride Content | 0.3% Max |