Refractive Indices for the Binary Mixtures of N,N-Dimethylformamide with 2-Butanol and 2-Pentanol at Temperatures 303.15 K, 313.15 K, and 323.15 K
American Journal of Physical Chemistry
Volume 7, Issue 4, December 2018, Pages: 55-62
Received: Dec. 8, 2018; Accepted: Dec. 20, 2018; Published: Jan. 10, 2019
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Authors
Aklima Jahan, Department of Chemistry, University of Chittagong, Chittagong, Bangladesh
Md. Ashraful Alam, Department of Chemistry and Bioengineering, Iwate University, Morioka, Japan
Md. Ashiqur Rahman Khan, Department of Chemistry, University of Chittagong, Chittagong, Bangladesh
Shamim Akhtar, Department of Chemistry, University of Chittagong, Chittagong, Bangladesh
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Abstract
The refractive index values have been measured as a function of composition range at temperatures 303.15 K, 313.15 K, and 323.15 K and at ambient pressure and reported here. From these data, refractive index deviations, ΔnD, excess molar refraction, RmE, were calculated and correlated by the Redlich-Kister-type polynomial equation to derive the coefficients and estimated the standard deviation values. For both systems, ΔnD were found to be both positive and negative. Excess molar refraction, RmE, versus mole fraction, x1, of N,N-dimethylformamide curves were calculated and found as sigmoid at all temperatures. The variation of these properties with composition and temperature of the binary mixtures were discussed in terms of intermolecular interactions.
Keywords
N,N-Dimethylformamide, 2-Butanol, 2-Pentanol, Refractive Index Deviations, Molecular Interactions
To cite this article
Aklima Jahan, Md. Ashraful Alam, Md. Ashiqur Rahman Khan, Shamim Akhtar, Refractive Indices for the Binary Mixtures of N,N-Dimethylformamide with 2-Butanol and 2-Pentanol at Temperatures 303.15 K, 313.15 K, and 323.15 K, American Journal of Physical Chemistry. Vol. 7, No. 4, 2018, pp. 55-62. doi: 10.11648/j.ajpc.20180704.11
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Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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