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Thermodynamic Properties of 2-Methyl-5-arylfuran-3 Carboxylic Acids Chlorine Derivatives in Organic Solvents

Iryna Sobechko1, Yuri Horak2, Volodymyr Dibrivnyi1, Mykola Obushak2, Lubomyr Goshko1
Affiliation: 
1 Lviv Polytechnic National University, 12, Bandery St., 79013 Lviv, Ukraine 2 Ivan Franko National University of Lviv, 6, Kyryla i Mefodiya St. 79005 Lviv, Ukraine phys.chem.lp@gmail.com
DOI: 
https://doi.org/10.23939/chcht13.03.280
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Keywords:

Abstract: 
The temperature dependences of the solubility of 2-methyl-5-(2-chloro-5-trifluoromethylphenyl)-furan-3-carboxylic acid and 2-methyl-5-(2,5-dichlorophenyl)-furan-3-carboxylic acid in acetonitrile, dimethyl ketone, isopropanol and ethyl acetate have been experimentally determined. The enthalpies of fusion of the investigated substances, as well as their enthalpies and entropies of mixing at 298 K have been calculated. The dependence of the saturated solution concentration on the values of enthalpy and entropy of solubility at 298 K has been determined. The compensating effect of mixing the investigated acids with all solvents containing the carbonyl group has been established.
References: 

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