Density and viscosity of anhydrous mixtures of dimethylsulfoxide with acetonitrile in the range (298.15 to 318.15) K

The density and viscosity of dimethylsulfoxide (DMSO) + acetonitrile (AN) mixtures were determined over the whole composition range at T= (298.15, 303.15, 308.15, 313.15, and 318.15) K. Since experimental density values showed to be very sensitive to water content, the water-free values of these mag...

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Detalles Bibliográficos
Autores principales: Del Carmen Grande, M., García, M., Marschoff, C.M.
Formato: JOUR
Materias:
Activation parameters
Composition ranges
Density values
Excess volumes
Positive values
Ternary mixtures
Viscosity datum
Acetonitrile
Approximation theory
Dimethyl sulfoxide
Fluid dynamics
Viscometers
Viscosity
Water content
Mixtures
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00219568_v54_n2_p652_DelCarmenGrande
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:The density and viscosity of dimethylsulfoxide (DMSO) + acetonitrile (AN) mixtures were determined over the whole composition range at T= (298.15, 303.15, 308.15, 313.15, and 318.15) K. Since experimental density values showed to be very sensitive to water content, the water-free values of these magnitudes were determined by extrapolation from data obtained on ternary mixtures with small, well-determined, amounts of water and constant xDMSO/xAN. Excess volumes of the anhydrous mixtures show positive values with a quite symmetrical behavior. Viscosity data were satisfactorily fitted with a sixth degree polynomial. Excess viscosities as well as activation parameters for viscous flow in the mixtures were calculated. © 2009 American Chemical Society.

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