Corrosão do aço-carbono: uma abordagem do cotidiano no ensino de química
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Date
Advisor
Coadvisor
Graduate program
Undergraduate course
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Volume Title
Publisher
Soc Brasileira Quimica
GN1 Sistemas e Publicacoes
GN1 Sistemas e Publicacoes
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Article
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Acesso aberto
Abstract
In this paper, two simple ways of evaluating carbon steel sheet corrosion in a hydrochloric acid solution were presented as an experimental proposal for corrosion teaching. The first method is based on direct measurements of mass before and after corrosion tests. The second approach follows the principle of visual colorimetry by which soluble corrosion products are transformed into red complexes allowing monitoring of the products'concentration according to increases in solution color intensity. Both methods proved able to determine the corrosion rate.
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Keywords
Language
Portuguese
Citation
Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 38, n. 2, p. 293-296, 2015.
