HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Yu, Y. S. Articles by Bailey, G. W. Search for Related Content PubMed Articles by Yu, Y. S. Articles by Bailey, G. W. Agricola Articles by Yu, Y. S. Articles by Bailey, G. W.

Reduction of Nitrobenzene by Four Sulfide Minerals: Kinetics, Products, and Solubility

Technology Applications, Inc., c/o USEPA EnvironmentalResearch Laboratory, Athens, GA 30613-7799

George W. Bailey

Environmental Research Laboratory, Office of Researchand Development, USEPA, Athens, GA 30613-7799

^* Corresponding author.

ABSTRACT

Nitrobenzene was used as a molecular probe to study electron donor properties of four sulfide minerals. Nitrobenzene was selected as a probe because its reaction in aqueous systems has been well characterized. Suspensions of the four minerals were reacted with nitrobenzene under anaerobic conditions for various time periods. Nitrobenzene and its reaction products in both the solution and the solid phase were analyzed by liquid chromatography and UV-visible spectroscopy. The observed half-lives of nitrobenzene are 7.5, 40, 105, and 360 h, respectively, for reaction with sodium sulfide (Na₂S), alabandite (MnS), sphalerite (ZnS), and molybdenite (MoS₂) under anaerobic conditions, at a 0.24 mol L^–1 water-mineral mixture concentration. The log plot of calculated sulfide ion concentration of minerals vs. reaction halflife shows a linear relationship. Nitrobenzene reduction by sulfide minerals is a solution phenomena. The sulfide mineral dissolution rate and its solubility, however, influence the reduction rate.

This article has been cited by other articles:

				A. Esteve-Nunez, A. Caballero, and J. L. Ramos Biological Degradation of 2,4,6-Trinitrotoluene Microbiol. Mol. Biol. Rev., September 1, 2001; 65(3): 335 - 352. [Abstract] [Full Text] [PDF]