Solubilities of Gases in the Ionic Liquid 1-n-Butyl-3-methylimidazolium bis(Trifluoromethylsulfonyl)imide

Published

April 6, 2006

Author(s)

Byung-chul Lee, Stephanie L. Outcalt

Abstract

Solubility data of carbon dioxide, propane, propylene, n-butane, and 1-butene in the ionic liquid 1-n-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf₂N]) are presented as a function of pressure at temperatures between 280 K and 340 K. The equilibrium pressure at a given temperature and the amount of gas dissolved into the ionic liquid phase were measured with an experimental technique based on a saturation method at constant volume using an apparatus equipped with a cylindrical equilibrium view cell. 1-Butene had the highest solubility, followed by n-butane, propylene, and then propane. Carbon dioxide and propane are similarly the least soluble in the [bmim][Tf₂N]. Alkene gases were more soluble than alkane gases. The Henry's constants of each gas in the ionic liquid were estimated as a function of temperature from the experimental solubility data.

Citation

Journal of Chemical and Engineering Data

Volume

51

Pub Type

Journals

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Keywords

1-butene, 1-n-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, carbon dioxide, Henry's constant, ionic liquid, propane, propylene, solubility, n-butane

Citation

Lee, B. and Outcalt, S. (2006), Solubilities of Gases in the Ionic Liquid 1-n-Butyl-3-methylimidazolium bis(Trifluoromethylsulfonyl)imide, Journal of Chemical and Engineering Data, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50168 (Accessed April 30, 2026)

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