Oscillatory behaviour of isomers of hydroxybenzoic acid with and without catalyst
The present work establishes and compares the oscillatory behaviour of mono-, di- and trihydroxybenzoic acids as organic substrates in acidic bromate (1.0 mol L-1 H2SO4) without catalyst and in the presence of Mn2+ ion as the main catalyst. The oscillations are also affected by other catalyst such as Fe2+ ion. Further, the oscillations start diminishing in mixed catalyst systems. The experimental parameters were obtained potentiometrically and the results have been interpreted on the basis of FKN mechanism.
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| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2009
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000100002 |
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| Summary: | The present work establishes and compares the oscillatory behaviour of mono-, di- and trihydroxybenzoic acids as organic substrates in acidic bromate (1.0 mol L-1 H2SO4) without catalyst and in the presence of Mn2+ ion as the main catalyst. The oscillations are also affected by other catalyst such as Fe2+ ion. Further, the oscillations start diminishing in mixed catalyst systems. The experimental parameters were obtained potentiometrically and the results have been interpreted on the basis of FKN mechanism. |
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