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  • Chem Sci Trans., 2013, 2(3),  pp 911-921  

    DOI:10.7598/cst2013.454

    Research Article

    Apparent Molar Volume, Viscometric and Conductance Studies of Sodium Chloride in Different Composition of Lactose

  • SHASHI KANT and KAMINI SHARMA
  • Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla-171005, India
  • Abstract

    Molar volume, viscosity and conductance of sodium chloride in 2, 4 and 6 wt. % of lactose solutions have been evaluated from density, viscosity and conductance data respectively at temperatures 303.15 K,
    308.15 K, 313.15 K and 318.15 K. The solute-solvent interactions for sodium chloride in 2, 4 and 6 wt. % of lactose solutions have been inferred from φov, B- coefficient of Jones- Dole equation and Λom values. The structure making/breaking behavior of sodium chloride in different composition of lactose is inferred from the sign of [∂2φov/∂T2]p, dB/dT, transition state theory i.e. free energy contribution per mole of solute
    (Δ μo2) and free energy contribution per mole of solvent (Δ μo1) values and temperature coefficient of Walden product i.e. D(Λomη 0)/dT. It has been found that sodium chloride behaves as structure-breaker in 2, 4 and
    6 wt. % of lactose solutions from molar volume, viscosity and conductance studies.

    Keywords

    Molar volume, Viscosity, Conductance, Sodium chloride, Lactose

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