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Sulfides in the Anaerobic Environment: The Determination of Hydrogen Sulfide and Acid-Soluble Metallic Sulfides in Sea-Floor Sediment

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Lee Sing Kong

National Institute of Education, Nanyang Technological University, 469 Bukit Timah Road, Singapore 1025

Joan Kai Christensen , Boy Høyer , Lars Kryger and Niels Pind

Department of Chemistry, Aarhus University, Langelandsgade 140, DK-800 Århus C, Denmark

J. Chem. Educ., 1998, 75 (12), p 1605

DOI: 10.1021/ed075p1605

Publication Date (Web): December 1, 1998

Abstract

A procedure for the determination of hydrogen sulfide and acid-soluble metallic sulfides in sea floor sediment has been developed and tested as part of a laboratory course in analytical and environmental chemistry. The procedure includes (i) anaerobic sampling of sediment, (ii) a volatilization method, which discriminates between hydrogen sulfide and acid-soluble metallic sulfides in the sediment, and (iii) a quantitative determination of these sulfide components using an ion-selective electrode approach. The paper describes all experimental details and gives a brief summary of sulfide generation processes in sea-floor sediments, underlining the importance of sulfides in anaerobic environments. Representative results obtained during the laboratory course are discussed.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Environmental Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Electrochemistry

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Received: August 03, 2009

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Article

Sulfides in the Anaerobic Environment: The Determination of Hydrogen Sulfide and Acid-Soluble Metallic Sulfides in Sea-Floor Sediment

Abstract

Keywords (Audience):

Keywords (Domain):

Keywords (Pedagogy):

Keywords (Subject):

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History

Recommend & Share

Related Content

Review of The Basics of Crystallography and Diffraction, 3rd Edition

Synthesis and Structure-Property Relationships in (η6-Arene)Cr(CO)3 Chemistry: From Guided Experiments to Discovery Research

Integrating Computers into the First-Year Chemistry Laboratory: Application of Raoult's Law to a Two-Component System

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