Density and Speed of Sound of Diethylene glycol monoethyl ether + propylene glycol at T = (288.15–318.15) K

Document Type: Research Article

Authors

1 Research Center for Pharmaceutical Nanotechnology and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran

2 Tabriz university of medical sciences

3 Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran

4 Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran

Abstract

The density (ρ) and speed of sound (u) of the binary mixture (diethylene glycol monoethyl ether (carbitol) + propylene glycol (PG)) have been reported at T= (288.15, 298.15, 308.15 and 318.15) K. The excess molar volume ( ) and isentropic compressibility deviation (Δκs) were calculated using the measured data. The obtained values of ( ) and (Δκs) are negative and positive and become more negative and more positive, respectively. The ρ, u, Vm and κs values of the mixture were correlated by the Jouyban-Acree model with high accuracy. Furthermore, the calculated and Δκs values were correlated by the Redlich-Kister equation.

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