Solvatochromic Parameters for Binary Mixtures of 1-Ethyl-3- methylimidazolium Ethylsulfate with Aprotic and Protic Molecular Solvents

Jafari-Tarzanag, Yahya and Habibi-Yangjeh, Aziz (2008) Solvatochromic Parameters for Binary Mixtures of 1-Ethyl-3- methylimidazolium Ethylsulfate with Aprotic and Protic Molecular Solvents. In: 11th Iranian Physical Chemistry Seminar-July 2008.

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Abstract

Room-temperature ionic liquids (RTILs) have recently gained increased interest as potential “green” replacements for volatile organic solvents (VOCs) due to their unique properties.1 These compounds are typically composed of organic cations with organic or inorganic anions and have negligible vapor pressure and a wide liquid range (i.e., over 300 K).1 To increase the efficiency of a process (e.g., separation, extraction, synthesis, etc.), one would like to “tune” a solvent or solvent mixture by addition of cosolvents. It is beneficial in many ways to understand how added cosolvents (or impurities) affect the physicochemical properties of RTILs. When an ionic liquid can be mixed with other green solvents such as water and alcohols, their physicochemical properties will be tunable, and one can prepare mixtures of solvents with suitable physicochemical properties and a lower fraction of RTILs.

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