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Appearance
|
White crystalline powder
|
|
Assay (as KI; on anhydrous basis)
|
99 - 100.5%
|
|
Insoluble matter in water
|
Max 0.01%
|
|
Nitrate, nitrite and ammonia
|
Passes test
|
|
Chloride & bromide (as Cl)
|
Max 0.05%
|
|
Free alkali (as K2CO3) as per pharma
|
Passes test
|
|
Sulphate (SO4)
|
Max 0.015%
|
|
Iodate (IO3)
|
Max 0.0003%
|
|
Thiosulphate (S2O3)
|
Max 0.005%
|
|
Heavy metal (as Pb)
|
Max 0.001%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Loss on drying (at 105°C)
|
Max 1%
|