Using Iraqi Siliceous Rocks Surface In Adsorption of Benzaldehyde and Some Derivatives

Abstract

This study is concerned with the adsorption in solution of Benzaldehyde and some derivatives on Iraqi Siliceous rocks powder. In this work a U.V-Visible spectrophotometric technique has been obtained to study the adsorption isotherms;the isotherms are of type S3 and S4 according to Giles classification and are in a good correlation with Freundlich equation in the range of concentrations studied . The effect of introducing of electron withdrawing and electrondonating groups which substituted in the aromatic ring on the adsorption process followed the sequence :