Appearance (Colour)
White
Appearance (Form)
Very hygroscopic crystals
Solubility (Turbidity) 100% aq. solution
Clear
Solubility (Colour) 100% aq. solution
Colourless
Assay (by Neutralization)
min. 99.5%
Insoluble matter
max. 0.01%
Melting Point
55 - 58°C
Sulphated Ash
max. 0.02%
Chloride (CI)
max. 0.002%
Nitrate (NO3)
max. 0.002%
Phosphate (PO4)
max. 0.0005%
Sulphate (SO4)
max. 0.02%
Heavy Metals (Pb)
max. 0.001%
Iron (Fe)
max. 0.002%
Substances darkened by Sulphuric acid
Passes test
