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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/4700

    Título
    Thermodynamics of Mixtures Containing a Very Strongly Polar Compound. 10. Liquid–Liquid Equilibria for N,N-Dimethylacetamide + Selected Alkanes
    Autor
    Alonso Tristán, CristinaUBU authority Orcid ORCID
    González, Juan Antonio .
    García de la Fuente, Isaías .
    Cobos, José Carlos .
    Publicado en
    Journal of Chemical and Engineering Data. 2013, V. 58, n. 8, p. 2339–2344
    Editorial
    American Chemical Society
    Fecha de publicación
    2013-08
    ISSN
    0021-9568
    DOI
    10.1021/je400487e
    Abstract
    Liquid−liquid equilibrium (LLE) temperatures versus composition for N,Ndimethylacetamide (DMA) + decane, + dodecane, + tetradecane, + 2,2,4-trimethylpentane, + methylcyclohexane, or + cyclooctane mixtures have been measured by means of the critical opalescence method using a laser scattering technique. All the systems show an upper critical solution temperature (UCST). In the case of n-alkane mixtures, UCST increases almost linearly with the chain length of the n-alkane. Moreover, these solutions show higher UCST values than those with isomeric cyclic alkanes. Branching leads to a strong decrease of UCST. The symmetry of the LLE curves depends on the size and shape of the alkane. DISQUAC correctly represents the coordinates of the critical points using interaction parameters available in the literature.
    URI
    http://hdl.handle.net/10259/4700
    Versión del editor
    https://doi.org/10.1021/je400487e
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