Dergiler / Turkish Journal of Chemistry / 1999 / Cilt: 23 - Sayı: 2
Investigation of Adsorption Isotherms of Myristic, Palmitic and Stearic Acids on Rice Hull Ash
- Sayfa
- 193–198
- DOI
- —
Özet
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, D 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.
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, D 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.