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, I.R. IRAN

2 Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, I.R. IRAN

3 Kimia Idea Pardaz Azarbayjan (KIPA) Science-Based Company, Tabriz University of Medical Sciences, Tabriz, I.R. IRAN

4 Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, I.R. IRAN

5 Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, I.R. IRAN

Abstract

Thedensity(ρ) and speed of sound (u)of the binarymixture (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, respectively, and become more negative and more positive with an increase in carbitol mole fraction. 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 well by the Redlich-Kister equation.

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