Monograph - Metrohm

Compilation of results: bases as titrantsSolvent Electr. pH init pH end d pH pH EP «TAN» RemarksPyridine a) 9.7 14.1 4.4 13.14 0.113Pyridine a) 9.6 14.2 4.6 13.22 0.116Pyridine a) 10.0 14.2 4.2 13.18 0.117Pyridine b) 9.7 14.8 5.1 14.20 0.120Pyridine b) 11.2 16.0 4.8 14.94 0.114Pyridine b) 11.2 15.8 4.6 14.91 0.114Acetonitrile a) 8.5 12.7 4.2 11.54 0.104 Diaphragm cloggedAcetonitrile a) 9.3 13.1 3.8 11.96 0.106 after titrationAcetonitrile a) 9.4 13.3 3.9 12.29 0.107Acetonitrile b) 10.0 14.2 4.2 13.28 0.104 Diaphragm cloggedAcetonitrile b) 10.3 14.3 4.0 13.46 0.105 after titrationAcetonitrile b) 10.4 14.4 4.0 13.47 0.103Non-aqueous titration of acids and bases with potentiometric endpoint indication 23