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

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

MAX. IMPURITIES

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

Loss on drying at 100°C................................................................... 0,1 %

Residue on ignition (as SO4)......................................................... 0,005 %

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

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

Nitrate (NO3).................................................................................. 0,001 %

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

As............................................................................................. 0,00002 %

Metals by ICP [mg/Kg (ppm)]

Ag...............................5

Al................................5

Au...............................5

B.................................5

Be...............................5

Bi................................5

Ca.............................20

Cd...............................5

Co...............................5

Cr................................5

Cu...............................5

Fe................................5

Ga...............................5

Ge...............................5

Hg...............................5

In.................................5

K...............................50

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

Mn..............................5

Mo..............................5

Na.............................50

Ni................................5

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

Pt................................5

Sb...............................5

Si................................5

Sn...............................5

Sr................................5

Ti.................................5

Tl.................................5

V.................................5

Zn...............................5

Zr................................5