Vapor-liquid equilibra for cyclohexane+2-propoxyethanol and cyclohexane+2-butoxyethanol systems

Sujin Kim; Yun Kyung Choi; Dongmyung Kim; Moon Sam Shin

Korean Journal of Chemical Engineering, Vol.29, No.5, 644-649, May, 2012

DOI10.1007/s11814-011-0236-9 Export Citation

Vapor-liquid equilibra for cyclohexane+2-propoxyethanol and cyclohexane+2-butoxyethanol systems

Sujin Kim, Yun Kyung Choi¹, Dongmyung Kim², and Moon Sam Shin^{1, †}

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

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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.

Keywords:Surfactants;2-Propoxyethanol;2-Butoxyethanol;Cyclohexane;Association

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[1] OH SG, KIM JG, KIM JD, Korean J. Chem. Eng., 4(1), 53 (1987)

[2] Davis MI, Thermochim. Acta., 190, 259 (1991)

[3] Lee HS, Lee H, J. Chem. Eng. Data, 41(6), 1358 (1996)

[4] Lai HH, Chen LJ, J. Chem. Eng. Data., 44, 251 (1996)

[5] Carmona FJ, Bhethanabotla VR, Campbell SW, Gonzalez JA, de la Fuente IG, Cobos JC, J. Chem. Thermodyn., 33(1), 47 (2001)

[6] Carmona FJ, Gonzalez JA, Garcia de la Fuente I, Cobos JC, Bhethanabotla VR, Campbell SC, J. Chem. Eng. Data., 45, 699 (2000)

[7] Jang S, Shin MS, Lee Y, Kim H, J. Chem. Thermodyn., 41(1), 51 (2009)

[8] Shin MS, Kim H, J. Chem. Thermodyn., 40(7), 1110 (2008)

[9] Lee Y, Jang S, Shin MS, Kim H, Fluid Phase Equilib., 276(1), 53 (2009)

[10] Jang S, Hyeong S, Shin MS, Kim H, Fluid Phase Equilib., 298, 270 (2009)

[11] Stryjek R, Vera JH, Can. J. Chem. Eng., 64, 323 (1986)

[12] Wong DS, Sander SI, AIChE J., 38, 671 (1992)

[13] Gibbs RE, Van Ness HC, Ind. Eng. Chem. Fundam., 11, 410 (1972)

[14] Giles NF, Wilson HL, Wilding WV, J. Chem. Eng. Data, 41(6), 1223 (1996)

[15] Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)

[16] Gmehling J, Fluid Phase Equilib., 107(1), 1 (1995)