Assay (Arg.) calc. a.d.s.........................................................98,0-100,5 %
Identity according to Pharmacopoeias................................................ p/t.
pH of 5% solution.......................................................................... 5,0-8,8
MAX. IMPURITIES
Appearance of solution........................................................................ p/t.
Insoluble matter in H2O................................................................. 0,025 %
Loss on drying at 105°C................................................................... 3,0 %
Residual solvents (Ph.Eur./USP)............................................................ p/t
Acidity or alkalinity............................................................................... p/t.
Nitrogen compounds (as N)........................................................... 0,01 %
Bromate (BrO3)...................................................................................... p/t.
Chloride (Cl)...................................................................................... 0,3 %
Sulphate (SO4)................................................................................ 0,01 %
Iodide (I)................................................................................................ p/t.
Magnesium and alkaline-earth metals (as Ca)............................... 0,02 %
Heavy metals (as Pb).................................................................... 0,001 %
As............................................................................................... 0,0002 %
Ba......................................................................................................... p/t.
Ca................................................................................................. 0,005 %
Cu................................................................................................. 0,001 %
Fe.................................................................................................. 0,001 %
Mg................................................................................................ 0,005 %
Ni.................................................................................................. 0,001 %
Pb................................................................................................. 0,001 %
