Appearance (Colour)
White to pale yellow
Appearance (Form)
Powder
Solubility (Turbidity) 2% solution in Methanol
Clear
Assay (Iodometric)
min. 99%
Melting Point
258 – 263°C
Loss on drying
max. 1%
Sulphated Ash
max. 0.1%
Heavy Metals (Pb)
max. 0.001%
Suitability as indicator
Passes test
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