Appearance White crystalline powder Solubility (1.0M aqueous) Clear, colorless solution Melt point 149-153℃ Infrafed Must conform to known refe…
Appearance White crystalline powder Solubility (1.0M aqueous) Clear, colorless solution Melt point 149-153℃ Infrafed Must conform to known reference Assay ≥99.5% Water Content (By Karl Fischer) ≤0.5% PH (1.0% aqueous ) 4.2-5.0 Ultraviolet Absorbance A (260nm) (1.0M aqueous) ≤0.06 Abs unit Ultraviolet Absorbance A (280nm) (1.0M aqueous) ≤0.05 Abs unit Loss on drying ≤0.5% Heavy metal ≤5ppm Fe ≤5ppm Packing 25kgs paper bag/25kgs fbibre drum
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