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Title: Temporal oscillations and spatial structures in blue bottle experiment
Authors: Das, Ishwar
Gupta, Sujeet Kumar
Issue Date: Jan-2003
Publisher: NISCAIR-CSIR, India
Abstract: Reaction between carbohydrate and methylene blue in an alkaline medium known as blue bottle experiment has been studied in the presence and absence of the polymer polyethylene glycol. We have observed potential changes with time (temporal oscillations). Mosaic structures have been obtained when glucose is taken, may be due to higher percentage of β-anomer. However, no such pattern has been obtained with fructose and cellobiose as these differ from glucose considerably. There is a lower limit of methylene blue (1×10-5 M) and a corresponding higher limit of glucose (0.01 M) when no such patterns can be obtained. It has been observed that polymer in the medium provides better condition for the simultaneous oxidation reduction process. A simple mechanism has been proposed for the process.
Page(s): 30-34
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.42A(01) [January 2003]

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