Assay.....................................................................................99,0-101,0%
Identity according to Pharmacopoeias................................................ p/t.
Melting range............................................................................ 118-120°C
MAX. IMPURITIES
Appearance of solution........................................................................ p/t.
Odour................................................................................................... p/t.
Residue on ignition (as SO4)............................................................. 0,1 %
Residual solvents (Ph.Eur./USP)........................................................... p/t.
Acidity or alkalinity............................................................................... p/t.
Chloride (Cl).................................................................................. 0,005 %
Sulphate (SO4)................................................................................ 0,01 %
Sulphide............................................................................................... p/t.
Water (H2O)....................................................................................... 0,5 %
Arsenic and selenium (as As)..................................................... 0,0002 %
