Assay (Iodom.).......................................................................99,4-100,4%

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

MAX. IMPURITIES

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

Loss on drying at 130°C................................................................. 0,05 %

Nitrogen compounds (as N)......................................................... 0,002 %

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

Sulphate (SO4).............................................................................. 0,005 %

Iodide (I)........................................................................................ 0,001 %

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

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

Cd............................................................................................... 0,0005 %

Co............................................................................................... 0,0005 %

Cu............................................................................................... 0,0005 %

Fe.................................................................................................. 0,001 %

Mg................................................................................................ 0,001 %

Mn.............................................................................................. 0,0005 %

Na................................................................................................. 0,005 %

Ni................................................................................................ 0,0005 %

Pb............................................................................................... 0,0005 %

Zn............................................................................................... 0,0005 %