2026-05-16T04:30:46Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/46972024-11-05T10:58:21Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394
González López, Juan Antonio
6258fd6c-c3fd-4a03-899d-b967f9c11638
600
Mediavilla Trabada, Ángela
740
500
García de la Fuente, Isaías
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500
Cobos, José Carlos .
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500
Alonso Tristán, Cristina
23
500
0000-0003-4733-7391
Riesco, Nicolás
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2018-01-11T11:39:50Z
2018-01-11T11:39:50Z
2013-07
0888-5885
http://hdl.handle.net/10259/4697
10.1021/ie4019269
1-Alkanol + alkanone systems have been investigated through the data analysis of molar excess functions,
enthalpies, isobaric heat capacities, volumes and entropies, and using the Flory model and the formalism of the concentrationconcentration
structure factor (SCC(0)). The enthalpy of the hydroxyl-carbonyl interactions has been evaluated. These
interactions are stronger in mixtures with shorter alcohols (methanol-1-butanol) and 2-propanone or 2-butanone. However,
effects related to the self-association of alcohols and to solvation between unlike molecules are of minor importance when
compared with those which arise from dipolar interactions. Physical interactions are more relevant in mixtures with longer
1-alkanols. The studied systems are characterized by large structural effects. The variation of the molar excess enthalpy with the
alcohol size along systems with a given ketone or with the alkanone size in solutions with a given alcohol are discussed in terms of
the different contributions to this excess function. Mixtures with methanol show rather large orientational effects. The random
mixing hypothesis is attained to a large extent for mixtures with 1-alkanols ≠ methanol and 2-alkanones. Steric effects and
cyclization lead to stronger orientational effects in mixtures with 3-pentanone, 4-heptanone, or cyclohexanone. The increase of
temperature weakens orientational effects. Results from SCC(0) calculations show that homocoordination is predominant and
support conclusions obtained from the Flory model.
Ministerio de Ciencia e Innovación, under Project
FIS2010-16957.
application/pdf
eng
American Chemical Society
Industrial & Engineering Chemistry Research. 2013, V. 52, n. 30, p.10317–10328
https://doi.org/10.1021/ie4019269
info:eu-repo/grantAgreement/MICINN/FIS2010-16957
Electrical engineering
Electrotecnia
Orientational Effects and Random Mixing in 1-Alkanol + Alkanone Mixtures
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
info:eu-repo/semantics/openAccess
THUMBNAIL
González-IECR_2013.pdf.jpg
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González-IECR_2013.pdf
González-IECR_2013.pdf
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LICENSE
license.txt
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TEXT
González-IECR_2013.pdf.txt
González-IECR_2013.pdf.txt
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10259/4697
oai:riubu.ubu.es:10259/4697
2024-11-05 11:58:21.032
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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