| Abstract |
Solubilities of triethylamine in aqueous calcium chloride solutions were measured at 20, 25, 30, and 35degreesC. The molalities in CaCl2 of the aqueous solvents ranged from 0.01 to 0.1 mol-kg(-1). Data were evaluated from density measurements with a vibrating-tube densimeter. A least-squares method was used to fit experimental density data points, taken at 15degreesC, to a double polynomial equation. Triethylamine molalities of the saturated aqueous phases were estimated by interpolation from this equation. Solubilities and thermodynamic properties of transfer of Et3N from water to salt solutions were interpreted in terms of hydrophobic and electrostatic perturbed domains in the hydration shells of the nonelectrolyte and of the cation of the salt, as a function of temperature and salt concentration. |
