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Appearance
|
A white crystalline powder
|
|
Assay (on dried basis)
|
Min 99.5%
|
|
Insoluble matter
|
Max 0.01%
|
|
pH (5% solution)
|
6.0 - 9.0
|
|
Chloride & bromide (as Cl)
|
Max 0.01%
|
|
Sulphate (SO4)
|
Max 0.005%
|
|
Iodate (IO3)
|
Max 0.0003%
|
|
Heavy metal (as Pb)
|
Max 0.0005%
|
|
Barium (Ba)
|
Max 0.002%
|
|
Iron (Fe)
|
Max 0.0005%
|
|
Calcium (Ca)
|
Max 0.002%
|
|
Magnesium (Mg)
|
Max 0.001
|
|
Potassium (K)
|
Max 0.01%
|
|
Phosphate (PO4)
|
Max 0.001%
|
|
Loss on drying (at 105°C)
|
Max 0.5%
|