Teor de Álcool na Gasolina

Authors

  • Alzira Pereira de Souza

DOI:

https://doi.org/10.15536/reducarmais.0.2012.%25p.614

Abstract

A gasolina é uma mistura de hidrocarbonetos obtida a partir da
destilação de petróleo, não sendo, portanto, uma substância pura. No Brasil,
antes da comercialização, adiciona-se álcool anidro à gasolina. A mistura
resultante é homogênea. A mistura água-álcool também é um sistema
homogêneo, com diferentes substâncias que a compõem. Já a mistura água gasolina é um sistema heterogêneo, bifásico. Quando a gasolina (que contém álcool) é misturada à água, o álcool é extraído pela água e o sistema resultante continua sendo bifásico: gasolina-água/álcool. Após, deixando-se o sistema em repouso para que ocorra a separação das fases, determina-se o volume de cada uma. Então, calcula-se o teor percentual de álcool na mostra de gasolina.

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Published

2012-08-04

How to Cite

de Souza, A. P. (2012). Teor de Álcool na Gasolina. Educar Mais, (1). https://doi.org/10.15536/reducarmais.0.2012.%p.614

Issue

No. 1 (2012)

Section

Articles

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