Indian Journal of Advances in Chemical Science Volume: 5, Issue: 3, July 2017

 
             
   
   

ISSN No.: 2320-0898 (Print); 2320-0928 (Electronic)

DOI:  10.22607/IJACS.2017.503011

 

   

Research Article

 

      The Study of Physicochemical Properties of Binary Liquid Mixtures of Triethylamine with 2-Methoxyethanol, 2-Ethoxyethanol, 2-Butoxyethanol, 2-(2-Methoxyethoxy) ethanol, 2-(2-Ethoxyethoxy)ethanol, and 2-(2-Butoxyethoxy)ethanol at 308.15 K    
S. Bahadur Alisha*, S. Nafeesabanu, K.S.V. Krishna Rao, M.C.S. Subha, K. Chowdoji Rao
ABSTRACT
 
Densities and viscosities of binary liquid mixtures of triethylamine with cellosolves [2-methoxyethanol (EEL), 2-EEL, 2-butoxyethanol] and carbitols [2-(2-methoxyethoxy)ethanol, 2-(2-ethoxyethoxy)ethanol, 2-(2-butoxyethoxy)ethanol] have been measured at 308.15K. From the experimental data, the excess volume (VE), excess viscosity (ηE), and the excess molar Gibbs free energy of the activation of viscous flow (G⃰ E) have been computed and presented as function of composition. The observed variations of the properties for the above mixtures conclude that the interactions between unlike molecules predominate over the dissociation effects in the individual components. It is also evident that the presence of strong interactions between unlike molecules is predominant and characterized by the negative VE and positive ηE and G⃰ .E values.
     
     

Key words: Binary liquid mixtures, Trietylamine, Cellosolves and carbitols, Viscosity, Density, excess thermodynamic parameters, Molecular interactions.

 

 

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