Assay [as Na (calc. a.d.s.)](Perchl. Ac.)......................................6,5-9,5 %

Identity according to Pharmacopoeias................................................ p/t.

pH of 1% solution.......................................................................... 6,5-8,0

Viscosity (2% sol. at 20°C)......................................................400-800 cP

MAX. IMPURITIES

Appearance of solution........................................................................ p/t.

Insoluble matter in H2O......................................................................... p/t.

Loss on drying at 105°C................................................................. 10,0 %

Residue on ignition (as SO4)...................................................20,0-29,3 %

Chloride (Cl).................................................................................... 0,25 %

Residual solvents (Ph.Eur./USP)........................................................... p/t.

Sodium glycolate.............................................................................. 0,4 %

Heavy metals (as Pb).................................................................... 0,002 %

As............................................................................................... 0,0003 %

Fe.................................................................................................... 0,02 %