Resumen

LEYVA RAMOS, R.; VELAZQUEZ VARGAS, L. G.; MENDOZA BARRON, J.  y  GUERRERO CORONADO, R. M.. Adsorción de salicilato de sodio en solución acuosa sobre carbón activado. Rev. Soc. Quím. Méx [online]. 2002, vol.46, n.2, pp.159-166. ISSN 0583-7693.

The experimental adsorption data of salicylate onto activated carbon were interpreted satisfactorily by the Prausnitz-Radke isotherm. The adsorption capacity increases diminishing the pH, but decreases increasing the temperature and when the carbon is oxidized with HNO₃. At pH 5 and 11, the capacity increases lightly with the NaCl addition, but no at pH 3. It is concluded that the adsorption mechanism of salicylate is dependent upon the pH and the interaction between the salicylate molecule and the carbon surface.

Palabras llave : Adsorption; salicylate; Prausnitz-Radke; carbon.