Um método para avaliar a taxa de corrosão
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Data
2011-01-01
Autores
Vaz, Ednilson Luiz Silva [UNESP]
Acciari, Heloisa Andréa [UNESP]
Codaro, Eduardo Norberto [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
In this paper it is proposed an indirect method to evaluate the corrosion rate of an aluminum and zinc alloy in alkaline solution by using a well-known device for collecting gases over water. The hydrogen gas formation, a corrosion product, is monitored at different time intervals and associated with the alloy mass loss. It has been suggested that the students should work in groups, which may make feasible the social interaction among them and that results discussion may be done collectively under a professor orientation. This proposal may propitiate the learning of terminology and involved concepts as well as contribute to a better understanding of corrosion phenomena that occur in their everyday life.
Descrição
Palavras-chave
chemistry education, corrosion, social interaction
Como citar
Química Nova. Sociedade Brasileira de Química, v. 34, n. 7, p. 1288-1290, 2011.