Appearance (Colour)
White
Appearance (Form)
Amorphous powder
Solubility (Turbidity) 10% solution 5N HCl
Clear
Solubility (Colour) 10% solution 5N HCl
Colourless
Assay (NaOH titration)
min. 99.5%
Acid insoluble matter
max. 0.005%
Chloride (CI)
max. 0.005%
Sulphate (SO4)
max. 0.005%
Iron (Fe)
max. 0.001%
Heavy Metals (Pb)
max. 0.0005%
Copper (Cu)
max. 0.005%
Sodium (Na)
max. 0.01%
Potassium (K)
max. 0.005%
Nitrogen Compounds (N)
max. 0.1%
Magnesium (Mg)
max. 0.02%
Barium (Ba)
max. 0.01%
Strontium (Sr)
max. 0.06%
Water - soluble alkali (Ca(OH)2)
max. 0.01%