• Density and viscosity of magnesium sulphate in formamide + ethylene glycol mixed solvents

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      https://www.ias.ac.in/article/fulltext/jcsc/114/05/0495-0500

    • Keywords

       

      Magnesium sulphate; formamide-ethylene glycol mixture; activation energy of viscous flow

    • Abstract

       

      Densities (ρ) and viscosities (η) of different strengths of magnesium sulphate (MgSO4) in varying proportions of formamide (FA) + ethylene glycol as mixed solvents were measured at room temperature. The experimental values of ρ and η were used to calculate the values of the apparent molar volume, (φ1,), partial molar volume, (φ1,) at infinite dilution,A- andB-coefficients of the Jones-Dole equation and free energies of activation of viscous flow, (Δμ10*) and (Δμ20*), per mole of solvent and solute respectively. The behaviour of these parameters suggests strong ion-solvent interactions in these systems and also that MgSO4 acts as structure-maker in FA + ethylene glycol mixed solvents.

    • Author Affiliations

       

      A Alp1 A K Nain1 N Kumar1 M Ibrahim2

      1. Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi - 110 025, India
      2. University Polytechnic, Jamia Millia Islamia (Central University), New Delhi - 110 025, India
    • Dates

       
  • Journal of Chemical Sciences | News

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