DENSITIES, REFRACTIVE-INDEXES, AND DERIVED EXCESS PROPERTIES OF (X(1)CH(3)COOCH(3)-X(1)-X(2))CH3CH(OH)CE3) AT THE TEMPERATURE 298.15 K(X(2)CH(3)OH+(1)

Densities and refractive indices of {x(1)CH(3)COOCH(3) + x(2)CH(3)OH (1 - x(1) - x(2))CH3CH(OH)CH3}, {xCH(3)COOCH(3) + (1 - x)CH3CH(OH)CH3 }, and {xCH(3)OH + (1 - x)CH3CH(OH)CH3} have been determined experimen tally as a function of the mole fraction(s) at the temperature 298.15 K and atmospheric pressure. A vibrating tube digital densimeter and an Abbe-type refractometer of synthetic sapphire prism (sodium D wavelen gth) were used, the whole mole fraction range being covered. Excess mo lar volumes and changes of refractive indices on mixing were determine d from experimental data, variable-degree polynomials being fitted wit h the results. Values of densities and refractive indices, as well as the derived excess properties, were estimated and compared using diffe rent methods. Partial excess molar volumes and those corresponding to the infinite dilution condition were also calculated at the same tempe rature. (C) 1997 Academic Press Limited.