2026-04-29T19:13:06Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/49512024-11-05T10:57:50Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394

Alonso Tristán, Cristina González López, Juan Antonio García de la Fuente, Isaías Sanz, Luis Felipe Cobos, José Carlos . 2018-02 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 application/pdf http://hdl.handle.net/10259/4951 eng American Chemical Society Liquid−Liquid Equilibria for 2‑Phenylethan-1-ol + Alkane Systems info:eu-repo/semantics/article TEXT RIUBU. Repositorio Institucional de la Universidad de Burgos Hispana