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

Journal of Chemical Sciences

M Ibrahim²  N Kumar¹  A K Nain¹  A Ali¹ 

[1] Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110 025, India$$;University Polytechnic, Jamia Millia Islamia (Central University), New Delhi 110 025, India$$

关键词: Magnesium sulphate;    formamide-ethylene glycol mixture;    activation energy of viscous flow.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

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, (𝜙𝑣), partial molar volume, (𝜙𝑣°) at infinite dilution, 𝐴- and $B$-coefficients of the Jones-Dole equation and free energies of activation of viscous flow, ($Delta mu^{0ast}_{1}$) and ($Delta mu^{0ast}_{2}$), 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.

【 授权许可】

Unknown