Initial Interfacial Tension for Various Organic–Water Systems and Study of the Effect of Solute Concentration and Temperature

Muhammad Zubair Shahid, Muhammad Rashid Usman, Muhammad Sarfraz Akram, Shehzad Younas Khawaja, Waheed Afzal

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Abstract

Interfacial tension is an important thermophysical property for operations involving multifluid phases such as liquid–liquid extraction. This work aims at presenting a rapid experimental method and initial interfacial tension data of nine organic compounds and water binary systems. The organic compounds include n-butyl acetate, cyclohexanol, cyclohexanone, diethyl ether, ethyl acetate, methyl ethyl ketone, methylcyclohexane, 1-octanol, and toluene. The effect of temperature on the initial interfacial tension was also studied. These systems are chosen to cover a wide range of interfacial tension (1–51 mN/m). Comparisons between the data sets from this work and those from the literature, whenever available, show generally very good agreement. This work also presents new data of initial interfacial tension for several ternary systems with four organic compounds and water with varying quantities of propionic acid or propanoic (0–0.25 mass fraction) at ambient conditions; the organic compounds include n-butyl acetate, cyclohexanone, 1-octanol, and toluene. The results show that the impact of propionic acid concentration as solute in water is large, especially at the higher solute concentrations. The initial and final (mutually saturated phases) interfacial tensions are found in agreement for different immiscible binary systems studied in this work. The method presented may be used as a rapid way of finding interfacial tensions.
Original languageEnglish
Pages (from-to)1198-1203
Number of pages6
JournalJournal of Chemical and Engineering Data
Volume62
Issue number4
Early online date24 Mar 2017
DOIs
Publication statusPublished - 13 Apr 2017

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Surface tension
Organic compounds
1-Octanol
Propionic acid
Temperature
Toluene
Water
Cyclohexanols
Ternary systems
Ketones
Ether
Ethers
Thermodynamic properties

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Initial Interfacial Tension for Various Organic–Water Systems and Study of the Effect of Solute Concentration and Temperature. / Shahid, Muhammad Zubair ; Usman, Muhammad Rashid; Akram, Muhammad Sarfraz; Khawaja, Shehzad Younas; Afzal, Waheed.

In: Journal of Chemical and Engineering Data, Vol. 62, No. 4, 13.04.2017, p. 1198-1203.

Research output: Contribution to journalArticle

Shahid, Muhammad Zubair ; Usman, Muhammad Rashid ; Akram, Muhammad Sarfraz ; Khawaja, Shehzad Younas ; Afzal, Waheed. / Initial Interfacial Tension for Various Organic–Water Systems and Study of the Effect of Solute Concentration and Temperature. In: Journal of Chemical and Engineering Data. 2017 ; Vol. 62, No. 4. pp. 1198-1203.
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