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Appearance | White or almost white,crystalline powder or colourless crystals |
Melting point | Corresponds |
Purity | 189℃~193℃ |
Free phenol (p-cresol) | 2.1~2.6 |
Moisture | 2.4~2.8 |
Ignition residue | +20.5°~+21.5° |
Sulphate (SO4) | Solution S is clear and not more intensely coloured than reference solution by 7 |
Heavy Metal (Pb) | ≦10 ppm |
As | 99.0%~100.5% |
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