Appearance (Colour)
White to off-white
Appearance (Form)
Hygroscopic crystals
Solubility (Turbidity) 10% aq. solution
Clear
Solubility (Colour) 10% aq. solution
Colourless
Assay
min. 99%
pH (5% aq. solution)
5.0 - 7.0
Insoluble matter
max. 0.005%
Chloride (CI)
max. 0.005%
Sulphate (SO4)
max. 0.002%
Iron (Fe)
max. 0.0005%
Heavy Metals (Pb)
max. 0.0005%
Nitrite (NO2)
max. 0.001%
Barium (Ba)
max. 0.005%
Magnesium (Mg)
max. 0.05%
Potassium (K)
max. 0.005%
Sodium (Na)
max. 0.01%
Strontium (Sr)
max. 0.05%