Heat and Entropy of Adsorption and Association of Long-Chain Surfactants at the Alumina-Aqueous Solution Interface
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 5
- File Size:
- 392 KB
- Publication Date:
- Jan 1, 1973
Abstract
Adsorption isotherms for dodecyl sulfonate on alumina were determined at 45°C and 25°C and the data was used for calculating the partial molar heat and entropy of adsorbed ions under various concentrations. Changes in OH and AS observed at certain concentrations agree with the postulate of interaction of surfactant ions to form two-dimensional aggregates at the solid-liquid interface. Values of the total OH and AS for the aggregation process calculated using the Clausius-Clapeyron equation is used to interpret the interactions of surfactant ions with each other as well as with the solvent molecules.
Citation
APA: (1973) Heat and Entropy of Adsorption and Association of Long-Chain Surfactants at the Alumina-Aqueous Solution Interface
MLA: Heat and Entropy of Adsorption and Association of Long-Chain Surfactants at the Alumina-Aqueous Solution Interface. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1973.