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Isothermal vapor–liquid equilibria and excess molar volumes for 2-methyl pyrazine (2MP) containing binary mixtures |
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| Authors: | So-Jin Park Hyun-Hee Kim Kyu-Jin Han Dong-Bok Won Sang Bong Lee Myoung-Jae Choi |
| Institution: | a Department of Chemical Engineering, College of Engineering, Chungnam National University, Daejeon 305-764, South Korea b Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, South Korea |
| Abstract: | 2-Methyl pyrazine (2MP) has led to significant interest for its industrial and pharmaceutical uses. The new vapor–liquid equilibria (VLE) at 353.15 K and excess molar volumes (VE) at 298.15 K over the whole mole fraction range for seven binaries (water, n-hexane, cyclohexane, n-heptane, methylcyclopentane (MCP), methylcyclohexane (MCH) and ethyl acetate (EA) with 2MP) have been measured. VLE were measured by using headspace gas chromatography and VE were determined using precision density meter. The water+2MP system has only the minimum boiling azeotrope. The experimental VLE and VE data were well correlated in terms of common gE models and Redlich–Kister equation, respectively. |
| Keywords: | Vapor–liquid equilibria Excess molar volume 2-Methyl pyrazine Solvent Correlation |
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