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

pH of 5% solution................................................................................ 3-4

MAX. IMPURITIES

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

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

Chloride (Cl).................................................................................. 0,001 %

Phosphate (PO4)......................................................................... 0,0005 %

As............................................................................................. 0,00004 %

Fe(III)................................................................................................. 0,1 %

Metals by ICP [mg/Kg (ppm)]

Be............................10

Bi.............................10

Ca............................50

Cd............................50

Co............................20

Cr.............................80

Cu............................10

Hg............................10

K..............................20

Mg...........................20

Mn.........................300

Mo...........................10

Na............................20

Ni.............................50

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

Sr.............................10

Ti..............................10

Zn............................20