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The Density and Surface Tension of Aqueous Solutions of Propionate Ionic Liquids: [C4mim][Pro] and [C6mim][Pro] at Different Temperatures
- 作者:Jing Tong ; Teng-Fei Chen ; Lin-Fu Wang ; Duo Zhang ; Qi Yang…
- 关键词:Ionic liquids ; Propionic acid ; Density ; Surface tension ; Aqueous solutions ; Coefficient of thermal expansion
- 刊名:Journal of Solution Chemistry
- 出版年:2016
- 出版时间:February 2016
- 年:2016
- 卷:45
- 期:2
- 页码:188-199
- 全文大小:546 KB
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- 作者单位:Jing Tong (1)
Teng-Fei Chen (1) Lin-Fu Wang (1) Duo Zhang (1) Qi Yang (1) Jia-Zhen Yang (1)
1. Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials, Liaoning University, Shenyang, 110036, China
- 刊物类别:Chemistry and Materials Science
- 刊物主题:Chemistry
Physical Chemistry Industrial Chemistry and Chemical Engineering Geochemistry Oceanography Inorganic Chemistry Condensed Matter
- 出版者:Springer Netherlands
- ISSN:1572-8927
文摘
The propionate acid ionic liquids, 1-alkyl-3-methylimidazolium propionate [C4mim][Pro] and [C6mim][Pro] were prepared by the neutralization method and characterized by 1H NMR spectroscopy and differential scanning calorimetry. The values of density and surface tension of aqueous [C4mim][Pro] and [C6mim][Pro] with various molalities were determined at different temperatures, and the coefficient of thermal expansion, the apparent molar volume and the parachor for these solutions were calculated. The values of the apparent molar expansibility of the solute obtained from data of the apparent molar volume are in good agreement with the values calculated by the Harned–Owen equation. An empirical equation for prediction of surface tension for aqueous [C4mim][Pro] and [C6mim][Pro] was put forward and the values of the surface tension predicted by the empirical equation are very similar and highly correlated with the corresponding experimental values and the results predicted by the parachor semi-empirical method for solutions. Keywords Ionic liquids Propionic acid Density Surface tension Aqueous solutions Coefficient of thermal expansion
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