Comment on “Oscillations in the Bromomalonic Acid/Bromate System Catalyzed by [Ru(bipy)3]2+”

1997 ◽  
Vol 101 (30) ◽  
pp. 5605-5606
Author(s):  
Janaina A. M. Pereira ◽  
Roberto B. Faria
Keyword(s):  
Bromomalonic Acid

Bromomalonic-acid-induced transition from trigger wave to big wave in the Belousov-Zhabotinsky reaction

2000 ◽  
Vol 61 (5) ◽  
pp. 5326-5329 ◽  
Author(s):  
Osamu Inomoto ◽  
Koji Abe ◽  
Takashi Amemiya ◽  
Tomohiko Yamaguchi ◽  
Shoichi Kai
Keyword(s):  
Bromomalonic Acid ◽  
Belousov Zhabotinsky Reaction

Stoichiometry of bromide production from ceric oxidation of bromomalonic acid in the Belousov-Zhabotinskii reaction

1993 ◽  
Vol 97 (11) ◽  
pp. 2623-2627 ◽  
Author(s):  
Horst Dieter Foersterling ◽  
Linda Stuk ◽  
Alexander Barr ◽  
William D. McCormick
Keyword(s):  
Bromomalonic Acid ◽  
Belousov Zhabotinskii Reaction

Bromomalonic acid as a source of photochemically produced Br− ion in the Ru(bpy)32+-catalyzed Belousov-Zhabotinsky reaction

1996 ◽  
Vol 259 (1-2) ◽  
pp. 219-224 ◽  
Author(s):  
Tomohiko Yamaguchi ◽  
Yuka Shimamoto ◽  
Takashi Amemiya ◽  
Minoru Yoshimoto ◽  
Takao Ohmori ◽  
...  
Keyword(s):  
Bromomalonic Acid ◽  
Belousov Zhabotinsky Reaction

Selectivities in the addition of radicals generated from derivatives of 2-bromomalonic acid to alkene pairs

1989 ◽  
Vol 54 (2) ◽  
pp. 308-311 ◽  
Author(s):  
Gerald Jay Gleicher ◽  
Belaid Mahiou ◽  
Alex J. Aretakis
Keyword(s):  
Bromomalonic Acid ◽  
Derivatives Of

Oscillatory Oxidation of Malonic Acid by Bromate

1973 ◽  
Vol 28 (1-2) ◽  
pp. 93-97 ◽  
Author(s):  
L. Bornmann ◽  
H. Busse ◽  
B. Hess
Keyword(s):  
Silica Gel ◽  
Chemical Reaction ◽  
Malonic Acid ◽  
Room Temperature ◽  
Gel Chromatography ◽  
Dibromoacetic Acid ◽  
Bromomalonic Acid ◽  
Silica Gel Chromatography

At room temperature the chemical reaction between malonic acid (0.2 M) and KBrO3 (0.06 м) in 1 м H2SO4 is catalysed by cerium ions. The oscillation of the yellow Ce4+ ions can be observed directly during the reaction. By silica-gel chromatography the brominated products of the reaction have been identified as dibromoacetic acid and bromomalonic acid.

HPLC Studies on the Organic Subset of the Oscillatory BZ Reaction. 3. Products of the Ce4+−Bromomalonic Acid Reaction

1998 ◽  
Vol 102 (6) ◽  
pp. 922-927 ◽  
Author(s):  
Julia Oslonovitch ◽  
Horst-Dieter Försterling ◽  
Mária Wittmann ◽  
Zoltán Noszticzius
Keyword(s):  
Bz Reaction ◽  
Bromomalonic Acid ◽  
Acid Reaction

Apparatus

1998 ◽  
Author(s):  
Irving R. Epstein ◽  
John A. Pojman
Keyword(s):  
High Sensitivity ◽  
Bz Reaction ◽  
Chemical Systems ◽  
Bromomalonic Acid ◽  
Vis Spectroscopy ◽  
Experimental Apparatus ◽  
The Subject ◽  
Multiple Species ◽  
Nonlinear Chemical Dynamics

In the previous chapter, we developed a set of conceptual and mathematical tools for analyzing the models and experimental data that form the subject matter of nonlinear chemical dynamics. Here, we describe some of the key items of experimental apparatus used to obtain these data so that the reader can better appreciate the results discussed in the following chapters and can learn how to begin his or her own investigations. The first several sections are devoted to measurements of temporal behavior, with emphasis on the techniques used to monitor reactions in time and on the reactors in which these reactions are studied. The final section focuses on the study of spatial patterns and waves in chemical systems. It is possible, by methods that we shall discuss later, to reconstruct the qualitative dynamics of a system from the measurement of only a single variable. However, the more species whose concentrations can be measured, the easier it is to elucidate a mechanism and the more rigorously that mechanism can be tested. The most impressive study of multiple species in a chemical oscillator was carried out by Vidal et al. (1980), who were able, by a combination of techniques, to monitor the concentrations of Ce4 + , Ce3+ , Br2, Br-, bromomalonic acid, O2, and CO2 in the BZ reaction. In the following sections, we will look at the most widely employed techniques: spectroscopic and potentiometric methods. In principle, and occasionally in practice, essentially any technique that can be used to detect changes in concentration can be utilized to monitor the systems that we are interested in. Approaches that have been employed to date include polarography, high-pressure liquid chromatography, and calorimetry. If there are absorbing species, ultraviolet and/or visible (UV/vis) spectroscopy offers rapid response time and high sensitivity for monitoring concentrations, particularly if the species of interest have spectra with relatively little overlap. Measurements can be made in a cuvette placed in a standard UV/vis spectrophotometer, but this configuration has several limitations.

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