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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume x Issue x (2006) pp 251-253

Microscale Environmental Chemistry. Part 6. Water Acidification by Oxidation of Mineral Sulfides (Acid Mine Drainage)

Jorge G. Ibanez

Centro Mexicano de Quimica en Microescala., Departmento de Ing. y Ciencias Quimicas. Universidad Iberoamericana, Prolongacion Reforma 880, 01210 Mexico, D.F. Mexico,
Received March 23, 2004. Accepted May 13, 2004.

Published online: 2 June 2006

Abstract. When sulfide minerals are exposed to air they become oxidized and produce sulfuric acid. In the present experiment we simulate and study the (nonbiological) production of acid mine drainage (or acid rock drainage) in a laboratory session using simple equipment and materials. The pH of different systems is monitored and the observed variations discussed.

Key Words: Laboratories and Demonstrations; general chemistry; analytic chemistry; electrochemistry; inorganic chemistry

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Issue date: August 1, 2006

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