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| Item | Specification |
| Appearance | White granules to powder |
|
Color of solution (Pt-Co#)
|
≤ 40 |
| Melting point | 128°C~ 134 °C |
| Acid number | 623mgKOH/g~630mgKOH/g |
| Ash content (wt%) | ≤ 0.3 % |
| Iron content (mg/Kg) | ≤ 10.0 µ g/g |
| Sulfate content (wt%) | ≤ 0.3 % |
| Ammonium content (wt%) | ≤ 0.03 % |
| Heating loss (wt%) | ≤ 0.4 % |
| Purity (wt%) | ≥ 99.0 % |