Journal
INTERNATIONAL JOURNAL OF THERMOPHYSICS
Volume 31, Issue 2, Pages 316-326Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10765-010-0719-7
Keywords
Excess molar volume; Refractive index; Ultrasonic speed; Viscosity deviation
Funding
- University Grants Commission, New Delhi [540/6/DRS/2002, SAP-1]
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Densities and viscosities were measured for binary mixtures of isoamyl alcohol with 2-methoxyethanol, 2-ethoxyethanol, and 2-butoxyethanol over the entire range of composition at 303.15 K, 313.15 K, and 323.15K and ultrasonic speeds and refractive indices at 303.15 K under atmospheric pressure. From the experimental values of density, viscosity, ultrasonic speed, and refractive index, the values of excess molar volume (V (E)), viscosity deviations (Delta eta), deviations in isentropic compressibility (Delta K (S) ), and excess molar refraction (Delta R) have been calculated. The excess or deviation properties were found to be either negative or positive, depending on the molecular interactions and the nature of liquid mixtures.
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