|
Appearance
|
White crystalline powder
|
|
Assay (Iodometric, on dried basis)
|
Min 99.8%
|
|
pH (5% solution in water)
|
5 - 9
|
|
Insoluble matter
|
Max 0.005%
|
|
Bromide (Br)
|
Max 0.02%
|
|
Total nitrogen (N)
|
Max 0.001%
|
|
Sulphate (SO4)
|
Max 0.005%
|
|
Heavy metal (as Pb)
|
Max 0.0005%
|
|
Iron (Fe)
|
Max 0.0005%
|
|
Sodium (Na)
|
Max 0.01%
|