Assay (Compl.).....................................................................99,5-101,0 %

pH of 5% solution.......................................................................... 6,0-7,0

MAX. IMPURITIES

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

Alkali and alkaline-earth salts........................................................... 0,1 %

Nitrogen compounds (as N)......................................................... 0,005 %

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

Nitrate (NO3).................................................................................. 0,005 %

Sulphate (SO4).............................................................................. 0,002 %

As............................................................................................. 0,00005 %

Ca................................................................................................. 0,005 %

Cd................................................................................................. 0,001 %

Cu................................................................................................. 0,001 %

Fe................................................................................................ 0,0005 %

K..................................................................................................... 0,01 %

Mg................................................................................................ 0,005 %

Mn................................................................................................ 0,001 %

Na................................................................................................... 0,01 %

Pb................................................................................................. 0,001 %