Desenvolvimento de ensaio para análise qualitativa de biodiesel em misturas diesel-biodiesel para aplicação em postos revendedores de combustíveis
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Data
2016
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Resumo
In this study, we developed a method for the visual detection of biodiesel in petrodiesel–biodiesel
(BX) blends through the aminolysis of the methyl or ethyl esters of fatty acids that are found in biodiesel and that are absent from
diesel and vegetable oils. This method is based on three reactional stages, which produce a dark red and easily visualized complex in
the presence of biodiesel. In the absence of biodiesel, there is no dark red coloring, whereas in the presence of diesel or vegetable oil,
there is a light red to yellow coloring. This simple, practical, inexpensive, and effective procedure may be applied by petrol stations
to guarantee to consumers and resellers the presence of biodiesel in diesel blends, regardless of the BX blend’s initial coloring or of
the sulfur found in the diesel. In short, it ensures a safe fuel tank fill-up with BX blend.
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Diesel–biodiesel blends, Petrol station, Quality control
Citação
SILVA, Marcos A. A.; BORGES, Adhane T. D.; ANTONIOSI FILHO, Nelson R. Desenvolvimento de ensaio para análise qualitativa de biodiesel em misturas diesel-biodiesel para aplicação em postos revendedores de combustíveis. Química Nova, São Paulo, v. 39, n. 1, p. 1-4, 2016.