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  • Chem Sci Trans., 2014, 3(3),  pp 969-976  

    DOI:10.7598/cst2014.865

    Research Article

    Acoustical Properties of Ternary Mixtures of Di-(2ethyl- hexyl)phosphoric Acid, Benzene and m-Xylene at Different Temperatures

  • M. MISHRA1, N. SWAIN2, B. DALAI3, S. K. SINGH4 and U. N. DASH1*
  • 1Department of Chemistry, Institute of Technical Education and Research, SOA University, Bhubaneswar-751 030, Odisha, India
    2Department of Chemistry, College of Basic Science and Humanities, OUAT, Bhubaneswar-751 003, Odisha, India
    3Department of Physics, Eastern Academy of Science and Technology, Bhubaneswar-754 001, Odisha, India
    4Department of IMMT, Institute of Minerals and Materials Technology (CSIR), Bhubaneswar-751 013, Odisha, India
  • Abstract

    Ultrasonic velocity (U) and density (ρ) of the ternary mixtures of di-(2-ethylhexyl) phosphoric acid (DEHPA), benzene and m-xylene were measured at atmospheric pressure and temperatures from 298.15K to 313.15K at an interval of 5K. The experimental data have been used to calculate adiabatic compressibility (Ks), intermolecular free length (Lf), acoustic impedance (Z), surface tension (σ), molar volume (Vm) and Wada’s constant (W). From the data, the deviations in adiabatic compressibility (ΔKs), ultrasonic velocity (?U), intermolecular free length (ΔLf) and acoustic impedance (ΔZ) were calculated. The results are discussed in terms of molecular interaction among components of the ternary mixture. The theoretical values of ultrasonic velocity have been calculated using various empirical relations and are compared with the corresponding experimental data by calculating percentage deviation.

    Keywords

    DEHPA, Ternary mixture, Ultrasonic studies, Molecular interaction

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