Appearance (Colour)
White
Appearance (Form)
Crystalline powder/ Solid
Solubility (Turbidity) 10% aq. solution
Clear
Solubility (Colour) 10% aq. solution
Colourless
Assay (T)
min. 99.8%
pH (5% aq. solution)
6.0 - 9.2
Loss on drying
max. 0.5% (150°C at 6hr)
Water Insoluble matter
max. 0.005%
Sulphate (SO4)
max. 0.005%
Phosphate (PO4)
max. 0.001%
Iron (Fe)
max. 0.0003%
Heavy Metals (Pb)
max. 0.0005%
Chloride and Bromide (as Cl)
max. 0.01%
Iodate (IO3)
max. 0.0003%
Sodium (Na)
max. 0.005%
Barium (Ba)
max. 0.002%
Calcium (Ca)
max. 0.002%
Magnesium (Mg)
max. 0.001%
