2026-04-29T19:13:30Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/49512024-11-05T10:57:50Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394
Repositorio Institucional de la Universidad de Burgos
author
Alonso Tristán, Cristina
author
González López, Juan Antonio
author
García de la Fuente, Isaías
author
Sanz, Luis Felipe
author
Cobos, José Carlos .
2018-09-13T08:04:11Z
2019-02-08T03:45:06Z
2018-02
0021-9568
http://hdl.handle.net/10259/4951
10.1021/acs.jced.7b00869
The liquid–liquid equilibrium (LLE) curves for 2-phenylethan-1-ol (2-phenylethanol, 2PhEtOH) + octane, + decane, + dodecane, + tetradecane or + 2,2,4-trimethylpentane have been determined by a method of turbidimetry using a laser scattering technique. Experimental results reveal that the systems are characterized by an upper critical solution temperature (UCST), which increases linearly with the number of C atoms of the n-alkane. In addition, the LLE curves have a rather horizontal top and become skewed to higher mole fractions of the n-alkane, when its size increases. For a given n-alkane, UCST decreases as follows: phenol > phenylmethanol > 2-PhEtOH, indicating that dipolar interactions decrease in the same sequence. This has been ascribed to a weakening in the same order of the proximity effects between the phenyl and OH groups of the aromatic alkanols. DISQUAC interaction parameters for OH/aliphatic and OH/aromatic contacts in the investigated systems are reported. Phenol, or phenylmethanol or 2-PhEtOH, + n-alkane mixtures only differ by the first dispersive Gibbs energy interaction parameter for the (OH/aliphatic) contact
eng
Liquid−Liquid Equilibria for 2‑Phenylethan-1-ol + Alkane Systems
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/4951/1/Alonso-jced_2018.pdf
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https://riubu.ubu.es/bitstream/10259/4951/3/Alonso-jced_2018.pdf.txt
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Alonso-jced_2018.pdf.txt