Item | Grau industrial | |
NaH4P2O4·2H2O | NaH4P2O4 | |
NaH4P2O4·2H2O, % ≥ | 98.0 | 98.0 |
Insolúvel em água, % ≤ | 0.10 | 0.20 |
FE, % ≤ | 0.05 | 0.05 |
As, % ≤ | 0.01 | 0.01 |
SO4, % ≤ | 0.50 | 0.50 |
CI, % ≤ | 0.40 | 0.40 |
F, % ≤ | 0.05 | 0.05 |
PH (10 G/L) | 4.2 ~ 4.6 | 4.2 ~ 4.6 |