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Received January 13, 2011
Accepted September 8, 2011
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Vapor-liquid equilibra for cyclohexane+2-propoxyethanol and cyclohexane+2-butoxyethanol systems
Department of Cosmetic Science, Chungwoon University, San 29, Namjang-ri, Hongseoung-gun, Chungnam 350-701, Korea 1Department of Dermatological Health Management, Eulji University, 212, Yangji-dong, Sujeong-gu, Seongnam-si, Gyeonggi-do 461-713, Korea 2Kolmar R&D Center, 183-5, Dodang-dong, Wanmi-gu, Buchen-si, Gyeonggi-do 420-806, Korea
msshin@eulji.ac.kr
Korean Journal of Chemical Engineering, May 2012, 29(5), 644-649(6), 10.1007/s11814-011-0236-9
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Abstract
2-propoxyethanol (C3E1) and 2-butoxyethanol (C4E1) are nonionic surfactants which are a particularly interesting class of substances due to both inter-molecular and intra-molecular association, related to the presence of O and OH in the same molecule. Binary (vapor+liquid) equilibrium data were measured for cyclohexane+2-propoxyethanol and cyclohexane+2-butoxy ethanol systems at temperatures ranging from 303.15 K to 323.15 K at 10 K intervals. A static apparatus was used in this study. Two systems show positive deviation from Raoult’s law and no azeotrope. The experimental data were correlated well with Peng-Robinson-Stryjek-Vera equation of state using Wong-Sandler mixing rule incorporating the non-random-two-liquid model.
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Carmona FJ, Bhethanabotla VR, Campbell SW, Gonzalez JA, de la Fuente IG, Cobos JC, J. Chem. Thermodyn., 33(1), 47 (2001)
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Jang S, Shin MS, Lee Y, Kim H, J. Chem. Thermodyn., 41(1), 51 (2009)
Shin MS, Kim H, J. Chem. Thermodyn., 40(7), 1110 (2008)
Lee Y, Jang S, Shin MS, Kim H, Fluid Phase Equilib., 276(1), 53 (2009)
Jang S, Hyeong S, Shin MS, Kim H, Fluid Phase Equilib., 298, 270 (2009)
Stryjek R, Vera JH, Can. J. Chem. Eng., 64, 323 (1986)
Wong DS, Sander SI, AIChE J., 38, 671 (1992)
Gibbs RE, Van Ness HC, Ind. Eng. Chem. Fundam., 11, 410 (1972)
Giles NF, Wilson HL, Wilding WV, J. Chem. Eng. Data, 41(6), 1223 (1996)
Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)
Gmehling J, Fluid Phase Equilib., 107(1), 1 (1995)
