International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 5 6 2015 June 18 Vapor-Liquid Equilibrium Data Prediction by Advanced Group Contribution Methods for a Binary System of Cyclopentyl methyl ether and Acetic acid at Atmospheric Pressure 64 72 EN Chauhan Sumedha 1 Yadav S.S. 2 HaddadBatool S. 1 Department of chemistry, college of Science, University of Basrah, Basrah, IRAQ MajeedNisreen N. 2 Al-RubaieAli Z. 3 Joshi Varsha 1 Department of Chemistry, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar 263145, Uttarakhand, INDIA Srivastava Anjana 2 Department of Soil Science, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar 263145, Uttarakhand, INDIA Pankaj 3 Department of Microbiology, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar 263145, Uttarakhand, INDIA Sharma Anita 4 SrivastavaPrakash 5 Chandra Prakash 6 Clara JeyageethaJ 1 Department of Chemistry, A.P.C Mahalaxmi College for Women, Tuticorin-628 002, Tamil Nadu, INDIA Kumar SugirthaP. 2 Department of Chemistry, Women’s Christian College, Nagercoil-629 001, Tamil Nadu, INDIA Verma Megha 1 Department of Environmental Science, G. B. Pant University of Agriculture and Technology, Pantnagar, 263145, INDIA Sati Meenakshi 2 Rai J.P.N. 3 Ghorpade V.S. 1 Post-Graduate Dept. of Chemistry, Nowrosjee Wadia College, Pune 411001, INDIA Borkar V.T. 2 Bhosale P.R. 3 Dangat V.T. 4 Praharaj ManojKumar 1 Dept. of Physics, ABIT, CDA, Sector-1, Cuttack, India Mishra Sarmistha 2 Pallikkavil R 1 Department of Chemistry, University of Calicut, Thenhipalam, Kerala, INDIA Ummathur M.B 2 PG Department of Chemistry, KAHM Unity Women’s College, Manjeri, Kerala, INDIA Krishnankutty K 3 Zahra N 1 Foodand Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Ferozepur Road, Lahore-54600, PAKISTAN Nisa A 2 Kalim I 3 Saeed K 4 Hina S 5 Ahmed I 6 Mahtab Jafarnezhad 1 Chemical Engineering Faculty, Islamic Azad University, South Tehran Branch, Tehran, IRAN Hassan Phalavnzdeh 2 Chemical Engineering Faculty, Tarbat Modarres University, Tehran, IRAN Mehdi Arjm 3 4 Kumar BodaneArun 1 Department of Chemistry, B.S.N. Govt. P.G. College, Shajapur, M.P., 465001, INDIA Kattimani Jyoti 1 Department of Physics, Gulbarga University, Gulbarga-585106, Karnataka, INDIA T. Sankarappa 2 Ramanna R. 3 J.S. Ashwajeet 4 Parsana V.M. 1 School of Engineering, RK University, Rajkot, INDIA Parikh S.P. 2 Chemical Engineering Department, V.V.P. Engineering College, Gujarat Technological University, Ahmedabad, INDIA > Research Article 2015 6 7 2015 June 18 The isobaric vapour-liquid equilibrium data predictions for the binary system of cyclopentyl methyl ether and acetic acid have been obtained using UNIFAC method and modified UNIFAC Dortmund method. Group identification is done with Dortmund Data Bank and the same has been confirmed by artist free software. The interaction parameters in the UNIFAC method and modified UNIFAC Dortmund method, for the ether group (-CHO) and acid (-COOH), are used to predict VLE data. Thermodynamic consistency of the predicted VLE data has been checked by the Herington method. The predicted data have been correlated with Van Laar, Wilson and NRTL activity coefficient models. The binary interaction parameters of models had been obtained by regression. The predicted VLE data of UNIFAC method fit much more accurately than that of modified UNIFAC Dortmund method by these activity coefficient models Van Laar, Wilson and NRTL. Copyright@ International Science Community Association