Minimum assay (Compl.)................................................................ 99,0 %

pH of 5% solution.......................................................................... 5,2-8,0

MAX. IMPURITIES

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

Loss on drying at 150°C.........................................................14,0-16,0 %

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

Oxidizing substances (as NO3)..................................................... 0,005 %

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

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

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

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

Cr................................................................................................ 0,0005 %

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

Fe................................................................................................ 0,0002 %

K................................................................................................. 0,0025 %

Mg.............................................................................................. 0,0005 %

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

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

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

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

Sr.................................................................................................... 0,01 %

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