|
Appearance
|
White solid
|
|
Assay
|
Min 99.0%
|
|
pH (5% solution; 25°C)
|
5.0 - 9.0
|
|
Insoluble matter
|
Max 0.005%
|
|
Iodide (I)
|
Max 0.002%
|
|
Bromide (Br)
|
Max 0.01%
|
|
Chlorate and nitrate (NO3)
|
Max 0.003%
|
|
Phosphate (PO4)
|
Max 5 ppm
|
|
Sulphate (SO4)
|
Max 0.004%
|
|
Barium (Ba)
|
Passes test
|
|
Heavy metals (by ICP-OES)
|
Max 5 ppm
|
|
Iron (Fe)
|
Max 2 ppm
|
|
Calcium (Ca)
|
Max 0.002%
|
|
Magnesium (Mg)
|
Max 0.001%
|
|
Potassium (K)
|
Max 0.005%
|