Assay (C3H8O3)........................................................................83,5-88,5 %

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

Refractive index n 20/D............................................................ 1,449-1,455

MAX. IMPURITIES

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

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

Residue on ignition (as SO4)........................................................... 0,01 %

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

Darkened substances by H2SO4........................................................... p/t.

Diethylenglycol and related substances............................................... p/t.

Aldehydes (as CH2O).................................................................... 0,001 %

Sugars.................................................................................................. p/t.

Acidity or alkalinity............................................................................... p/t.

Esters................................................................................................... p/t.

Water (H2O).............................................................................12,0-16,0 %

Halogenated compounds (as Cl).................................................. 0,003 %

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

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

Ammonium (NH4).......................................................................... 0,001 %

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

As............................................................................................. 0,00015 %

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

Fe.................................................................................................. 0,001 %

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

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