Test Item | Specification | Result | ||
Purity,% ≥ | 99.9 | 99.97 | ||
Methanol,% ≤ | 0.0010 | 0.0008 | ||
Chromaticity(in Hazen) (Pt-Co),≤ | 5 | 5 | ||
Moisture,% ≤ | 0.050 | 0.0065 | ||
Iron (as Fe)(mg/kg), ≤
| 0.050 | 0.03 | ||
Acidity(as formic acid),% ≤ | 0.0010 | 0.0005 | ||
Alkalinity(as dimethylamine),% ≤ | 0.0010 | 0.0004 | ||
PH value (25℃,20% aqueous solution) | 6.5~8.0 | 6.8 | ||
Conductivity(25℃)us/cm ≤ | 2 | 0.4 | ||
