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Appearance
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Off white to pale yellow crystalline powder
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|
Assay (by HClO4 titration)
|
Min. 99.0%
|
|
Melting point
|
72 - 74°C
|
|
Iron (Fe)
|
Max. 0.001%
|
|
Heavy metal (as Pb)
|
Max. 0.001%
|
|
Loss on drying
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Max. 0.5%
|
|
Sulphated ash
|
Max. 0.1%
|
|
Reaction against H2SO4
|
Passes test
|