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Influence of Hydrotrop on Solubility and Mass Transfer Co Efficient Enhancement of Triphenylcarbinole

Author Affiliations

  • 1Department of Chemical Engineering, Sathyabama University, Chennai, 600 119 INDIA
  • 2Department of Chemical Engineering, A.C. College of Technology, Anna University, Chennai, 600 025 INDIA

Res.J.chem.sci., Volume 2, Issue (5), Pages 35-41, May,18 (2012)


A broad research of the solubility and mass transfer coefficient enhancement of triphenylcarbinole through hydrotropy has been commenced. The solubility investigations have been carried out with hydrotropes such as potassium acetate, sodium saccharin, and sodium toluene sulfonate, for a wide concentration range from 0 to 3.0 mol/L along with system temperature from 303K to 333 K. The effectiveness of hydrotropes was measured by the determination of Setschenow constant ″Ks″. The solubility of triphenylcarbinole increases with increasing hydrotrope concentration and also with system temperature. A minimum hydrotrope concentration (MHC) in the aqueous phase was required to initiate significant solubilization of triphenylcarbinole. Consequent to the increase in solubilization of triphenylcarbinole, the mass transfer coefficient was also found to increase with increasing hydrotrope concentration. A threshold value of MHC is to be maintained to have an appreciable enhancement in the mass transfer coefficient. The maximum enhancement factor, which is the ratio of the solubility values in the presence and absence of a hydrotrope, has been determined for all sets of experiments.


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