Experimental density data and excess molar volumes of coconut biodiesel + n-hexadecane and coconut biodiesel + diesel at different temperatures

AUTOR(ES)

Mesquita, F. M. R., Feitosa, F. X., Santiago-Aguiar, R. S. de, Sant'Ana, H. B. de

FONTE

Braz. J. Chem. Eng.

DATA DE PUBLICAÇÃO

2014-06

RESUMO

The density of the pure component (n-hexadecane), pure pseudo-components (coconut biodiesel and diesel) and pseudo-binary mixtures of coconut biodiesel with n-hexadecane (or + diesel) were measured at temperatures 293.15, 313.15, 333.15, 353.15 and 373.15 K and atmospheric pressure, over the entire composition range (mole fractions from 0.1 to 0.9, with a step de 0.1). Densities were determined using an Anton Paar SVM 3000 viscodensimeter. Experimental density values decreased with the increase of the temperature. The excess molar volumes of the pseudo-binary mixtures were calculated by using the experimental values of density. Excess molar volumes were correlated with the Redlich-Kister polynomial expansions. Excess molar volumes show positive and negative values in the two systems studied. Excess partial volumes at infinite dilution were calculated for coconut biodiesel, n-hexadecane and diesel in the mixtures studied.

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