| Type: | Dyestuff Intermediates |
|---|---|
| Appearance: | Powder |
| Quality: | Industrial |
|
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| Item | Unit | Specification |
| Appearance | - | White phosphorus flake or crystal powder |
| Molten chromaticity(color) | ≤ | 20 |
| Thermal stability chromaticity(color) | ≤ | 50 |
| Sulphuric acid chromaticity(color) | ≤ | 40 |
| Crystallization point ºC | ≥ | 130.5 |
| Purity | ≥% | 99.5 |
| Maleic anhydride content | ≤ | 0.05 |
| Free acid content | ≤ | 0.20 |
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