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    STUDIA CHEMIA - Issue no. 1 / 2019  
         
  Article:   EXCESS AND DEVIATIONS PROPERTIES FOR THE BINARY SOLVENT MIXTURES OF TETRAHYDROFURFURYL ALCOHOL WITH SOME AROMATIC HYDROCARBONS AT 298.15K.

Authors:  DHAFIR TAMWEEN AJEEL AL-HEETIMI, ZAINAB ABBAS AL-DULAIMY, ASAL AHMED AL-JAWARY, OMAR SABEEH AL-KHAZRAJY.
 
       
         
  Abstract:  
DOI: 10.24193/subbchem.2019.1.08
pp. 103-112
Published Online: 2019-03-30
Published Print: 2019-03-30
VIEW PDF: chem.ubbcluj.ro/~studiachemia/chemia2019_1.html

In this work, excess properties (e.g. excess molar volume (VE), excess viscosity (ηE), excess Gibbs free energy of activation of viscos flow (ΔG*E) and molar refraction changes (ΔnD) of binary solvent mixtures of tetrahydrofurfuryl alcohol (THFA) with aromatic hydrocarbons (benzene, toluene and p-xylene) have been calculated. This was achieved by determining the physical properties including density ρ, viscosity η and refraction index nD of liquid mixtures at 298.15K. Results of the excess parameters and deviation functions for the binary solvent mixtures at 298.15 K have been discussed by molecular interactions that occur in these mixtures. Generally, parameters showed negative values and have been found to fit well to Redlich-Kister equation which has been used to obtain the coefficients and evaluate the standard error.

Keywords: Binary systems, Tetrahydrofurfuryl alcohol, Deviations and excess properties, Density, Viscosity.
 
         
     
         
         
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