Molecular structure and ph effects on the adsorption of 13 s-triazine compounds on montmorillonite clay

J. B. Weber

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Research Article| December 01, 1966

Molecular structure and ph effects on the adsorption of 13 s-triazine compounds on montmorillonite clay

J. B. Weber

Crop Science Department, North Carolina State University, Raleigh, N. C.

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Author and Article Information

J. B. Weber

Crop Science Department, North Carolina State University, Raleigh, N. C.

Publisher: Mineralogical Society of America

Received: 27 Jan 1966

Accepted: 19 Aug 1966

First Online: 06 Jul 2018

Online ISSN: 1945-3027

Print ISSN: 0003-004X

Mineralogical Society of America

American Mineralogist (1966) 51 (11-12): 1657–1670.

Abstract

The adsorption of 13 related s-triazine compounds on montmorillonite clay as influenced by pH and molecular structure was investigated. Adsorption isotherms for prometone on montmorillonite were determined at six pH levels. The maximum adsorption of all the compounds on montmorillonite was found to occur at a pH in the vicinity of the pK_A value of each compound. Substituent groups on the triazine ring were found to be related to the amount of adsorption which resulted. Mechanisms of adsorption were postulated and discussed.

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