Appearance (Colour)
Off-white to Pale Grey
Appearance (Form)
Powder
Solubility (Turbidity) 10% aq. solution
Clear
pH (5% aq. solution)
3.5 - 4.5
Assay (Iodometric)
min.99.0%
Loss on drying
max.1%
Water Insoluble matter
max.0.005%
Chloride (CI)
max.0.01%
Iron (Fe)
max.0.01%
Lead (Pb)
max.0.01%
Arsenic (As)
max.0.0005%
Calcium (Ca)
max.0.005%
Magnesium (Mg)
max.0.005%
Nickel (Ni)
max.0.002%
Potassium (K)
max.0.002%
Sodium (Na)
max.0.005%
Zinc (Zn)
max.0.002%
