PHYSICAL AND DERIVED EXCESS PROPERTIES OF THE SYSTEM (X(1)CH(3)COOCH(3)-X(1)-X(2))CH3CH2C(OH)(CH3)(2)) AT THE TEMPERATURE 298.15(X(2)CH(3)OH+(1)

Density and refractive index data in the binary mixtures {xCH(3)COOCH( 3) + (1 - x)CH3CH2C(OH)(CH3)(2)} and {xCH(3)OH + (1 - x)CH3CH2C(OH)(CH 3)(2)} and the ternary mixture {x(1)CH(3)COOCH(3) + x(2)CH(3)OH + (1 - x(1) - x(2))CH3CH2C(OH)(CH3)(2)} are presented at T = 298.15 K over t he whole range of mole fractions and atmospheric pressure, These resul ts are used to calculate excess molar volumes and changes of refractiv e index of mixing. The calculated quantities are further fitted to the Redlich-Kister and the Cibulka equations to estimate the binary and t ernary interaction parameters, respectively, and standard deviations f rom the regression lines. To compare the physical and derived properti es we applied several estimation methods. A comparison is made in term s of excess molar volumes and ternary contribution to these properties by variation of the number of methyl groups in the carbon that has th e hydroxyl group. (C) 1998 Academic Press.