Thermodynamics of mixtures containing alkoxyethanols. XXVIII: Liquid–liquid equilibria for 2-phenoxyethanol+selected alkanes

Abstract The coexistence curves of the liquid–liquid equilibria (LLE) for systems of 2-phenoxyethanol (2PhEE) with heptane, octane, cyclohexane, methylcyclohexane or ethylcyclohexane have been determined by the method of the critical opalescence using a laser scattering technique. All the curves show an upper critical solution temperature (UCST), have a rather horizontal top and their symmetry depends on the relative size of the mixture compounds. UCST values are higher for systems with linear alkanes than for solutions including cyclic alkanes. For these mixtures, the UCST increases with the size of the alkyl group attached to the cyclic part of the molecule. It is shown that interactions between alkoxyethanol molecules are stronger when the hydroxyether contains an aromatic group. Data are used to determine the critical exponent for the order parameter mole fraction. Values obtained are consistent with those provided by the Ising model or by the renormalization group theory.

• Publication year

  2011

• Venue

  Thermochimica Acta

• Publication date

  2011-07-10

• Fields of study

  Physics, Chemistry

• Identifiers
  DOI 10.1016/j.tca.2011.04.012arXiv 2402.05987
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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