TestSpecification
DescriptionWhite, crystalline powder or granular
Assay99.0% min.
pH of a 5% solution at 25 Deg. C4.5 - 6.0
Insoluble Matter0.005% max.
Residue after Ignition0.01% max.
Bromate (BrO3)0.002% max.
Chloride (Cl)0.2% max.
Iodide (I)To pass test
Sulfate (SO4)0.005% max.
Barium (Ba)0.002% max.
Heavy metals (as Pb)5 ppm max.
Iron (Fe)5 ppm max.