Volumetric and acoustic properties of ionic liquid, 1-hexyl-3-methylimidazolium bromide in 1-hexanol, 1-heptanol and 1-octanol at T = (298.15–328.15) K

ABSTRACT

The density ρ and speed of sound u of the binary mixtures (1-hexyl-3-methylimidazolium bromide ([HMIm][Br]) + 1-hexanol or 1-heptanol or 1-octanol) were reported at T= (298.15, 308.15, 318.15 and 328.15) K and atmospheric pressure. Using the experimental-measured data, the molar volume V_m, excess molar volume $V_m^E$, isentropic compressibility κ_s and isentropic compressibility deviation Δκ_s were calculated. Also, the Jouyban–Acree and Redlich–Kister polynomial equations were used for correlation of (ρ, V_m, u and κ_s) and ($V_m^E$ and Δκ_s), respectively. The obtained percent average relative deviation %ARD and standard deviation σ show that the studied mixtures can be described well by Jouyban–Acree and Redlich–Kister equations, respectively.

KEYWORDS:

• Density
• speed of sound
• 1-hexyl-3-methylimidazolium bromide
• alkanols
• Jouyban–Acree model

Acknowledgments

S. N. Mirheydari would like to thank for a postdoctorate grant (693118) of Tabriz University of Medical Sciences for supporting this work.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Tabriz University of Medical Sciences [693118].