Appearance (Colour)
White
Appearance (Form)
Crystalline powder
Solubility (Turbidity) 10% aq. solution
Clear
Solubility (Colour) 10% aq. solution
Colourless
Assay (by Neutralization)
min. 99.7%
Sulphated Ash
max. 0.01%
Chloride (CI)
max. 0.0005%
Sulphate (SO4)
max. 0.002%
Phosphate (PO4)
max. 0.0005%
Iron (Fe)
max. 0.0001%
Heavy Metals (Pb)
max. 0.0002%
Copper (Cu)
max. 0.0005%
Oxalate (C2O4)
max. 0.005%
Readily carbonisable substances
Passes test