Densities, speeds of sound, excess volumes and viscosities of binary mixtures of mtbe with tetralin and decalin at 303.15 k

Authors: K.V.N. Suresh Reddy; P. Srinivasa Rao; A. Krishnaiah

Source: Physics and Chemistry of Liquids, Volume 42, Number 6, December 2004 , pp. 561-568(8)

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Abstract:

Measurements of densities, speeds of sound, excess volumes and viscosities of binary mixture of methyl tert -butyl ether with tetralin and decalin are reported at 303.15 K over the entire range of composition. Excess volumes are measured using batch dilatometer technique. Sound speeds are obtained using ultrasonic interferometer. Densities are computed from excess volume data. Isentropic compressibilities are derived from density and sound speed data. Speeds of sound are evaluated on the basis of Jacobson's free length theory and Schaff's collision factor theory. The predicted values are in good agreement with the experimental results. The viscosity data are analysed on the basis of corresponding states approach. Excess volumes and deviation in isentropic compressibilities are negative and deviation in viscosities are positive over the entire composition range. The experimental results are discussed in terms of possible molecular interactions between unlike molecules.

Keywords: Excess volumes; Compressibilities; Viscosities; Methyl tert-butyl ether

Document Type: Research article

DOI: 10.1080/00319100412331320610