• Study of apparent molal volume and viscosity of mutual citric acid and disodium hydrogen orthophosphate aqueous systems

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    • Keywords


      Citric acid-disodium hydrogen orthophosphate aqueous system; density/viscosity of aqueous systems; limiting constants at infinite dilution

    • Abstract


      Fundamental properties, density (ρ) and viscosity (η), of citric acid (CA) and disodium hydrogen orthophosphate (DSP) at various strengths were obtained at different temperatures. The ρ and η values were used to determine apparent molal volumes and viscosity of systems. The ρ, VΦ and η values were regressed against molalitym for ρ0, η0 and VΦ0, the limiting constants at infinite dilution (m → 0) for ionic and molecular interactions. The ρ0 and VΦ0 of aq. acids are higher than those of aq. DSP and the viscosity of DSP is higher than that of aq. CA. Examination of ρ0 and VΦ0 functions indicates that mutual compositions of CA and DSP counterbalance concentration and temperature effects on pH in bioprocesses.

    • Author Affiliations


      Man Singh1

      1. Chemistry Research Lab, Deshbandhu College, University of Delhi, New Delhi - 110 019
    • Dates

  • Journal of Chemical Sciences | News

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