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Studies in partial molar volumes, partial molar compressibilities and viscosity B-coefficients of caffeine in water at four temperatures

✍ Scribed by D.V. Jahagirdar; B.R. Arbad; A.A. Walvekar; A.G. Shankarwar; M.K. Lande

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 486 KB
Volume: 85
Category: Article
ISSN: 0167-7322
DOI: 10.1016/s0167-7322(00)89019-4

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✦ Synopsis

Density, ultrasonic velocity and viscosity of caffeine a pharmaceutically significant drug in water at four temperatures were measured. The partial molar volume ($Vo), partial molar compressibility (d,o) and the viscosity B coefficient were calculated from the experimental data. Values of QIVO and $,o are used to understand solute-solvent interactions. Magnitudes of B/4V~ were calculated at four temperatures. These were 2.72, 3.01, 3.35 and 3.52 at 25, 30, 37 and 40°C respectively. $,o showed an insignificant while B

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