Appearance (Colour)
White
Appearance (Form)
Crystalline powder
Solubility (Turbidity) 10% aq. solution
Clear
Solubility (Colour) 10% aq. solution
Colourless
Assay (NaOH titration)
min. 99%
pH (5% aq. solution)
4.0 - 4.5
Chloride (CI)
max. 0.001%
Sulphate (SO4)
max. 0.005%
Iron (Fe)
max. 0.0005%
Heavy Metals (Pb)
max. 0.0005%
Nitrogen Compounds (N)
max. 0.001%
Absorbance (A) of 1M aq. solution in a 1cm cell v/s H2O
@260nm
max. 0.1
@280nm
max. 0.1
