|
Appearance
|
Lemon yellow crystalline powder
|
|
Assay (iodometric)
|
Min 99.5%
|
|
Insoluble matter in water
|
Max 0.005%
|
|
pH (5% solution in water)
|
9.0 - 9.8
|
|
Chloride (Cl)
|
Max 0.001%
|
|
Sulphate (SO4)
|
Max 0.01%
|
|
Lead (Pb)
|
Max 0.005%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Sodium (Na)
|
Max 0.05%
|