Minimum assay.............................................................................. 99,5 %

pH of 5% solution.......................................................................... 6,0-9,2

MAX. IMPURITIES

Insoluble matter in H2O................................................................. 0,003 %

Loss on drying at 150°C................................................................... 0,2 %

Reducing substances I2 (as I)....................................................... 0,001 %

Chloride and bromide (as Cl).......................................................... 0,01 %

Phosphate (PO4)........................................................................... 0,001 %

Nitrogen compounds (as N)......................................................... 0,001 %

Sulphate (SO4)............................................................................ 0,0025 %

Iodate (IO3).................................................................................. 0,0003 %

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

As............................................................................................. 0,00001 %

Metals by ICP [mg/Kg (ppm)]

Ag...............................5

Al................................5

Au...............................5

B.................................5

Ba.............................10

Be...............................5

Ca.............................10

Cd...............................5

Co...............................5

Cr................................5

Cu...............................5

Fe................................2

Ga...............................5

Ge...............................5

Hg...............................5

In.................................5

Mg..............................5

Mn..............................5

Mo..............................5

Na.............................50

Ni................................5

Pb...............................5

Pt................................5

Si................................5

Sn...............................5

Sr................................5

Ti.................................5

Tl.................................5

V.................................5

Zn...............................5

Zr................................5