Trusty or Rusty? Oxidation Rate of Nails

Stephen W. Wright
Pfizer Global Research and Development, Groton, CT 06340
J. Chem. Educ., 2005, 82 (11), p 1648A
DOI: 10.1021/ed082p1648A
Publication Date (Web): November 1, 2005

Abstract

In this Activity, students investigate the process of rusting using supermarket chemicals: unflavored gelatin, table salt and backache pain reliever tablets. A gelatin mixture is prepared and steel nails are placed in the gelatin and allowed to react with atmospheric oxygen. Ferric ion produced by the oxidation is made visible as a garnet-colored complex by magnesium salicylate present in the backache tablets. Factors that accelerate or retard the rate of iron oxidation are studied.

Keywords (Audience):

General Public

Keywords (Domain):

Demonstrations

Keywords (Feature):

JCE Classroom Activity

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Consumer Chemistry

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

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History

  • Received: August 03, 2009

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