Assay (Iodom.)...................................................................................99 %
pH of 5% solution................................................................................ 4-8
Insoluble matter in H2O................................................................... 0,05 %
Loss on drying at 130°C................................................................... 0,1 %
Nitrogen compounds (as N)........................................................... 0,01 %
Bromide and chloride (as Cl).......................................................... 0,05 %
Sulphate (SO4)................................................................................ 0,01 %
Cu................................................................................................. 0,002 %
Fe.................................................................................................. 0,002 %
Ni.................................................................................................. 0,002 %
Pb................................................................................................. 0,002 %
