Minimum assay.............................................................................. 99,0 %

pH of 5% solution.......................................................................... 5,5-8,0

MAX. IMPURITIES

Insoluble matter in H2O................................................................. 0,005 %

Loss on drying at 105°C................................................................... 1,0 %

Nitrogen compounds (as N)....................................................... 0,0005 %

Chloride (Cl)................................................................................ 0,0005 %

Phosphate (PO4)......................................................................... 0,0005 %

Heavy metals (as Pb).................................................................. 0,0005 %

As............................................................................................... 0,0001 %