Mechanism of Dinitrophenol Herbicide Sorption by Smectites in Aqueous Suspensions at Varying pH

The compound 4,6-dinitro-o-cresol (DNOC) is an important pesticide that is strongly adsorbed by smectite clays. Because DNOC is a weak acid with an acid dissociation constant (pK(a)) of about 4.4, pH was hypothesized to be a dominant state variable controlling sorption. In this study, we quantified...

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Veröffentlicht in:	Soil Science Society of America journal 2007-09, Vol.71 (5), p.1476-1481
Hauptverfasser:	Pereira, T.R, Laird, D.A, Johnston, C.T, Teppen, B.J, Li, H, Boyd, S.A
Format:	Artikel
Sprache:	eng
Schlagworte:	4,6-dinitro-o-cresol (DNOC) Acidity Adsorption Agronomy. Soil science and plant productions Biological and medical sciences calcium cations Chemicals dinitrocresols Earth sciences Earth, ocean, space Exact sciences and technology Freeze drying Fundamental and applied biological sciences. Psychology Herbicides Medical treatment Molecules Organic contaminants Pesticides Plastics industry pollutants potassium smectite soil pollution Soil science Soils Sorption Surficial geology suspensions
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