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| Specifications |
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| Appearance (Colour) | White | | Appearance (Form) | Flakes | | Solubility (Turbidity) 5% solution in Pyridine | Clear | | Solubility (Colour) 5% solution in Pyridine | Colouless | | Assay (NT) | min.99% | | Melting Point | 128° - 134°C | | Residue after ignition | max.0.01% | | Chloride (CI) | max.0.002% | | Sulphate (SO4) | max.0.003% | | Heavy Metals (Pb) | max.0.0005% | | Iron (Fe) | max.0.0005% | |
