|
Item |
Spec |
|
Appearance |
White or Colorless Crystal Power |
|
Main contents |
98.0-103.0% |
|
Phosphorus pentoxide, as P2O5 |
P: 25.3~26.6% |
|
PH of 1% water solution |
4.1-4.7 |
|
Fluoride, as F |
≤0.020% |
|
Arsenic,as As |
≤0.001% |
|
Lead, as Pb |
≤0.003% |
|
Sulphates,as SO4 |
≤2.0% |
|
Water insoluble |
≤0.1% |
|
Loss on drying |
20.0~25.0% |
