Monograph - Metrohm

Compilation of results: acids as titrantsSolvent Electr. pH init pH end d pH pH EP «TAN»MIBK/HAc/toluene 1:1:1 a) 0.6 -3.7 4.3 -1.47 0.099MIBK/HAc/toluene 1:1:1 a) 0.6 -3.6 4.2 -1.40 0.099MIBK/HAc/toluene 1:1:1 a) 0.7 -3.7 4.4 -1.35 0.099MIBK/HAc/toluene 1:1:1 b) 1.0 -3.4 4.4 1.04 0.098MIBK/HAc/toluene 1:1:1 b) 1.1 -3.3 4.4 -0.94 0.098MIBK/HAc/toluene 1:1:1 b) 1.0 -3.3 4.3 -1.03 0.098Toluene/IPA/water 500:495:5 a) 6.9 -0.5 7.4 2.33 0.101Toluene/IPA/water 500:495:5 a) 6.6 -0.5 7.1 2.88 0.099Toluene/IPA/water 500:495:5 a) 7.9 -0.5 8.4 2.84 0.100Toluene/IPA/water 500:495:5 b) 7.6 0.2 7.4 3.55 0.099Toluene/IPA/water 500:495:5 b) 8.3 0.2 8.1 3.83 0.099Toluene/IPA/water 500:495:5 b) 8.6 0.2 8.4 4.29 0.098V. Aniline; titrant: HCl in IPASolvent Electr. pH init pH end d pH pH EP «TAN»Ethanol a) 4.1 -1.4 5.5 0.30 0.100Ethanol a) 4.4 -1.2 5.6 0.32 0.099Ethanol a) 4.2 -1.3 5.5 0.28 0.100Ethanol b) 4.6 -0.5 5.1 0.91 0.099Ethanol b) 4.8 -0.5 5.3 0.87 0.100Ethanol b) 4.5 -0.5 5.0 0.92 0.099Acetone a) 2.2 -2.1 4.3 -0.50 0.100Acetone a) 2.2 -2.0 4.2 -0.38 0.099Acetone a) 2.4 -2.0 4.4 -0.41 0.100Acetone b) 3.0 -1.2 4.2 0.40 0.099Acetone b) 2.8 -1.6 4.4 0.48 0.099Acetone b) 3.2 -1.3 4.5 0.31 0.100Acetonitrile a) 2.4 -2.5 4.9 -0.91 0.100Acetonitrile a) 2.5 -2.4 4.9 -0.98 0.100Acetonitrile a) 1.8 -2.7 4.5 -1.19 0.099Acetonitrile b) 2.6 -2.1 4.7 -0.63 0.100Acetonitrile b) 2.6 -2.0 4.6 -0.59 0.100Acetonitrile b) 2.5 -2.0 4.5 -0.60 0.100Dioxane/IPA 1:1 a) 2.2 -1.6 3.8 -0.44 0.099Dioxane/IPA 1:1 a) 2.3 -1.6 3.9 -0.47 0.100Dioxane/IPA 1:1 a) 2.2 -1.6 3.8 -0.44 0.099Non-aqueous titration of acids and bases with potentiometric endpoint indication 41