Diffusion and Flow of Water Vapours in Chromatographic Alumina Gel

  • Muzzaffar Khan Department of Chemistry, University of Peshawar, Pakistan
  • Hammid Ullah Shah Department of Chemistry, NWFP, Agricultural University, Peshawar, Pakistan

Abstract

The kinetics of sorption of water vapours in chromatographic alumina gel was studied. Water vapours are adsorbed on the gel at temperature (15 °C) at different constant relative pressure from 0.1-0.93 p/p. Rate constant, Effective diffusivities, Knudsen diffusivities and bulk diffusivities were determined through Fick type equation. Total pore volume is 0.498 cc g-1 and specific surface area comes to be 465 m2 g-1 as obtained by Gurvitsch rule and Kieselve’s equations respectively. An average pore radius (hydraulic) is 1.1x10-7 cm. The study of these quantities provide a strong basis for evaluating surface properties.

Published
Dec 1, 2005
How to Cite
KHAN, Muzzaffar; SHAH, Hammid Ullah. Diffusion and Flow of Water Vapours in Chromatographic Alumina Gel. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 6, n. 2, p. 4, dec. 2005. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/110>. Date accessed: 17 dec. 2017.