Adsorption isotherms of fatty acids on rice hull ash in a model system | Zendy

Saleh Muhammad Idiris | Zendy; Adam Farook | Zendy

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Adsorption isotherms of fatty acids on rice hull ash in a model system

Author(s) -

Saleh Muhammad Idiris,

Adam Farook

Publication year - 1994

Publication title -

journal of the american oil chemists' society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.512

H-Index - 117

eISSN - 1558-9331

pISSN - 0003-021X

DOI - 10.1007/bf02541356

Subject(s) - adsorption , chemistry , monolayer , stearic acid , langmuir , myristic acid , chromatography , rice hulls , langmuir adsorption model , nuclear chemistry , organic chemistry , fatty acid , palmitic acid , materials science , biochemistry , composite material

The adsorption of lauric, myristic and stearic acids on rice hull ash (RHA) from isooctane as solvent was studied and conformed to a Langmuir isotherm. Monolayer coverage was determined to be 35.7±2.5, 43.5±2.2 and 36±5 mg/g, respectively. The free energy of adsorption, †G°, for the adsorption was determined to be‐6.64,‐6.23 and‐6.49 kcal mol −1 for the adsorbates, respectively. The equilibrium parameter indicated that RHA is a good adsorbent for the three fatty acids examined.

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