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Turkish Journal of Chemistry

Abstract

The adsorption of myristic, palmitic and stearic acids on rice hull ash from isooctane as solvent was studied and conformed to a Langmuir isotherm. Monolayer coverage was determined to be 40.08, 38.43 and 37.27 mg/g, respectively. The free energy of adsorption, \Delta G°_{ads}, for the adsorption was determined to be -6,25, -6.32 and -6.39 kcal mol^{-1} for the adsorbates, respectively. The equilibrium parameter indicated that rice hull ash is a good adsorbent for myristic, palmitic and stearic acids examined.

DOI

-

Keywords

Adsorption, free energy of adsorption, Langmuir isotherm, myristic, palmitic, stearic acids, rice hull ash.

First Page

193

Last Page

198

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