The (water + acetonitrile) mixture revisited: A new approach for calculating partial molar volumes

Density and viscosity of (water + acetonitrile) mixtures were measured over the whole composition range at the temperatures: (298.15, 303.15, 308.15, 313.15, and 318.15) K. A new mathematical approach was developed which allows the calculation of the derivatives of density with respect to compositio...

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Bibliographic Details
Published in:The Journal of chemical thermodynamics 2006-06, Vol.38 (6), p.760-768
Main Authors: del Carmen Grande, María, Juliá, Jorge Alvarez, Barrero, Carmen R., Marschoff, Carlos M., Bianchi, Hugo L.
Format: Article
Language:English
Subjects:
Chemical thermodynamics
Chemistry
Density
Exact sciences and technology
Fitting equations
General and physical chemistry
Mixtures
Thermodynamic properties
Viscosity
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Summary:Density and viscosity of (water + acetonitrile) mixtures were measured over the whole composition range at the temperatures: (298.15, 303.15, 308.15, 313.15, and 318.15) K. A new mathematical approach was developed which allows the calculation of the derivatives of density with respect to composition avoiding the appearance of local discontinuities. Thus, reliable partial molar volumes and thermal expansion coefficients were obtained.
ISSN:0021-9614
1096-3626
DOI:10.1016/j.jct.2005.08.009