A Study of Self Oscillatory Chemical Reaction of Gallic Acid and Potassium Bromate System

Babu, J. Sreekantha; Bokadia, M. M.; Srinivasulu, K.

doi:10.1246/bcsj.49.2875

Cited by 8 publications

(1 citation statement)

References 3 publications

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“…The reasons for choosing gallic acid as a substrate are as follows: (i) It exhibits dynamic behaviour in pure aqueous medium over a wide range of concentration conditions in the B-Z systems (Mn(II), Ce(III), ferroin, and uncatalyzed) (19)(20)(21). (ii) Since it is water soluble, the study would enable a comparison of its dynamic behaviour in different mixed media as well as in pure aqueous medium.…”

Section: Results and Discussion (A) Gallic Acid As Substratementioning

confidence: 99%

The oscillatory Belousov–Zhabotinsky reaction with flavones in batch systems using aqueous–DMF mixed medium

Maya¹,

Lalitha²,

Ramaswamy³

1994

Can. J. Chem.

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G. MAYA, P.V. LALITHA, and R. RAMASWAMY. Can. J. Chem. 72, 1537Chem. 72, (1994. Oscillatory systems of the Belousov-Zhabotinsky type with flavones as substrates are described for the first time. Since quercetin and morin are water insoluble, a mixed medium containing DMF and water was used with one of the three catalysts Ce(III), ferroin, or Mn(I1). The oscillatory behaviour of a water-soluble substrate (gallic acid) was studied in nine different aqueousorganic mixed media as well as in pure aqueous medium in the bromate-Ce(II1) system. The results obtained from a catalyzed system with quercetin or morin as the substrate in an aqueous-organic mixed medium are in agreement with the accepted (FKN) mechanism for an aqueous system. G. MAYA, P.V. LALITHA et R. RAMASWAMY. Can. J. Chem. 72, 1537 (1994). On dCcrit pour la premikre fois des systkmes oscillatoires du type Belousov-Zhabotinsky impliquant des flavones comme substrats. La quercktine et la morine Ctant insoluble dans l'eau, on a utilisk un milieu mixte contenant du DMF et de l'eau avec un des trois catalyseurs suivants: le Ce(III), la ferro'ine ou le Mn(I1). On a CtudiC le caractkre oscillatoire d'un substrat soluble dans l'eau (l'acide gallique) dans neufs milieux mixtes (eau/solvants organiques) ainsi que dans de l'eau pure dans le systkme bromatel Ce(II1). Les rksultats obtenus dans le systbme catalysC avec la quercCtine ou la morine comme substrats, dans un milieu mixte organique aqueux, sont conformes au micanisme accept6 (FKN) du systkme aqueux.[Traduit par la RCdaction]

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Section: Results and Discussion (A) Gallic Acid As Substratementioning

confidence: 99%

The oscillatory Belousov–Zhabotinsky reaction with flavones in batch systems using aqueous–DMF mixed medium

Maya¹,

Lalitha²,

Ramaswamy³

1994

Can. J. Chem.

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Oscillating Bromate Oxidative Reactions

Zhabotinsky

1980

Ber Bunsenges Phys Chem

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New Observations on the Belousov‐Zhabotinskii Reaction. The Oscillating Reaction of Organic Gallic Acid and Potassium Bromate Catalyzed by 1,10‐o‐Phenanthroline‐Iron(II) Complex

Jwo

Chang

1986

J Chinese Chemical Soc

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The oscillating reaction involving organic gallic acid (GA), potassium bromate, and a metal ion complex has been reinvestigated. In contrast to other previous reports, this oscillating reaction is catalyzed by the [Fe(phen)n]2+ ion (phen = 1,10‐o‐phenanthroline, n=1, 2, 3) rather than by the cerium ion. The characteristics of the oscillations depend on the temperature and on the concentrations of the potassium bromate, gallic acid, [Fe(phen)n]2+, and sulfuric acid. A cyclic voltammetric study indicates that the redox potential and the reversibility of the [Fe(phen)n]2+/3+ couple play a major role in catalyzing this oscillating system.

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A Study of Self Oscillatory Chemical Reaction of Gallic Acid and Potassium Bromate System

Cited by 8 publications

References 3 publications

The oscillatory Belousov–Zhabotinsky reaction with flavones in batch systems using aqueous–DMF mixed medium

The oscillatory Belousov–Zhabotinsky reaction with flavones in batch systems using aqueous–DMF mixed medium

Oscillating Bromate Oxidative Reactions

New Observations on the Belousov‐Zhabotinskii Reaction. The Oscillating Reaction of Organic Gallic Acid and Potassium Bromate Catalyzed by 1,10‐o‐Phenanthroline‐Iron(II) Complex

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