2016; Chemical and Biological Sciences 50 (1 (239): 14–18
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LIQUID–VAPOREQUILIBRIUM OF DIMETYLSULFOXIDE–ACETONITRILE SYSTEM AT THE TEMPERATURE RANGE 293.15–323.15K

Z.L. Grigoryan*

Received: 2025-03-10 · Published: 2016-03-31

© 2016 The Author(s) and the original publisher.

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Original title
LIQUID–VAPOREQUILIBRIUM OF DIMETYLSULFOXIDE–ACETONITRILE SYSTEM AT THE TEMPERATURE RANGE 293.15–323.15K
Author
Z.L. Grigoryan
Published
2016-03-31
Licence
as stated by the publisher

Abstract

The liquid–vapor phase equilibrium in the dimethylsulfoxide–acetonitrile binary system was studied using a static method. The total saturated vapor pressure at the temperature range 293.15–323.15K is measured. Partial pressures of dimethylsulfoxide and acetonitrile were calculated by integrating the Gibbs–Duhem equation. Molar excess Gibbs energies were described by the Redlich–Kister equation, and correlation parameters were calculated. It was found that molar excess Gibbs energies are negative, and the deviation from ideality increases as temperature increases.
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