Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9633490 | The Journal of Chemical Thermodynamics | 2005 | 4 Pages |
Abstract
The apparent molar volume of paracetamol (4-acetamidophenol) in water, 0.1 M HCl and 0.154 M NaCl as solvents at (298.15, 303.15, 308.15 and 310.65) K temperatures and at a pressure of 101.325 kPa were determined from the density data obtained with the help of a vibrating-tube Anton Paar DMA-48 densimeter. The partial molar volume, Vm, of paracetamol in these solvents at different temperatures was evaluated by extrapolating the apparent molar volume versus molality plots to m = 0. In addition, the partial molar expansivity, Eâ, the isobaric coefficient of thermal expansion, αp, and the interaction coefficient, Sv, have also been computed. The expansivity data show dependence of Eâ values on the structure of the solute molecules.
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Authors
Muhammad Javed Iqbal, Qaisar Mahmood Malik,