Study of molar volume and refraction in of triglyceride (triacetin, tributyrin or tricaprylin) -alcohol (ethanol, 1-butanol or 1-hexanol) mixtures

Authors

  • M. Rodríguez Rodríguez Departamento de Ingeniería Química. Universidad de Cádiz
  • M. Galán Vallejo Departamento de Ingeniería Química. Universidad de Cádiz
  • María J. Muñoz Cueto Departamento de Ingeniería Química. Universidad de Cádiz

DOI:

https://doi.org/10.3989/gya.1992.v43.i6.1127

Keywords:

Alcohol, Miscella, Molar refraction, Molar volume, Triglyceride

Abstract


Values of molar refraction for every studied mixtures show linear plots versus molar fractions of triglyceride. Values of molar volume show this behaviour, but only for tributyrin-butanol or tricaprylin-butanol miscellas. However, in tributyrin-ethanol mixtures, volume contractions have been found, whereas triacetin-butanol and tributyrin-hexanol show volume expansions. These facts are related to the mode of being structured of the alcohol and triglyceride molecules in mixtures. A linear relationship between molar volume and temperature have been found, and also a linear dependence between the coefficient of thermal expansion at constant pressure and the molar fraction of triglyceride.

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Published

1992-12-30

How to Cite

1.
Rodríguez Rodríguez M, Galán Vallejo M, Muñoz Cueto MJ. Study of molar volume and refraction in of triglyceride (triacetin, tributyrin or tricaprylin) -alcohol (ethanol, 1-butanol or 1-hexanol) mixtures. grasasaceites [Internet]. 1992Dec.30 [cited 2021Jul.28];43(6):322-9. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1127

Issue

Section

Research