Studies in some ‘isodielectric’ media. Part IV. Solvent effect on the proton transfer equilibria of some acids in methanol–propylene glycol at 25 °C

Buffer interactions: Densities and solubilities of some selected biological buffers in water and in aqueous 1,4-dioxane solutions

“…These include its appreciable solubility in organic solvents which leads to its accumulation in the biological phases of reaction systems. The solubilities of TRIS buffer in water and in various organic solvent have been studied [25][26][27][28][29][30]. No work seems to have been done on the measurement of solubilities of TAPS, TAPSO, and TABS in water or in organic solvents.…”

Solubility Determination of Tris(hydroxymethyl)aminomethane in Water + Methanol Mixtures at Various Temperatures Using a Laser Monitoring Technique

“…15, 298.15, and 308.15) K (measured by acidimeteric titration of the saturated solutions), 2 in water + 2-methoxyethanol mixtures at (288. 15, 298.15, and 308.15) K (measured by acidimeteric titration of the saturated solutions), 3 in water + 1,4-dioxane mixtures at 298 K, 4 in water + ethanol mixtures at 298 K, 5 in methanol + propylene glycol at 298 K, 6 in ethylene glycol + water at 298 K, 7 in N-methylpropionamide + water at 298 K, 8 in acetonitrile + ethylene glycol at 298.15 K, 9 in water + 2-ethoxyethanol, 10 and in water + sulfolane 11 has been reported in the literature.…”

Thermodynamic determination of solvation potentials of divalent metal chlorides (MCl2) in iso–dielectric media by EMF measurements

“…However, Hojo and Moriyama [14] have demonstrated that the ion association by hydrogen bonding and coordination forces depends on the acid-base properties of the solvent rather than on the dielectric constant. Kundu et al [15] studied the solvent effect on the proton transfer equilibria of some acids in iso-dielectric media of methanol-propylene glycol by EMF measurements. Their investigations suggested that the relative acidity of the mixed solvents increases with increasing proportion of propylene glycol.…”

“…In all these studies, the potential difference (EMF) measurements were carried out at two temperatures (303. 15 and 313.15) K of the dilute solutions of MCl 2 in various solvents/mixtures. Using experimental values of EMF, the standard EMF (E°) was calculated by Nernst equation, and by adopting iterative procedures, further obtained dissociation constants (K 1 and K 2 ), degree of dissociations (a 1 and a 2 ) and mean molal activity coefficients (c ± ) of electrolytes.…”