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Exhibition Chemistry: Beyond the 'blue bottle'

Description

A classic demonstration to show the rates of reactions. A flask containing a colourless liquid (consisting of an alkaline solution of glucose and methylene blue) is shaken. The resulting increase in dissolved oxygen concentration oxidises the colourless form of the dye back to the blue form, until the glucose reduces it once again.

beyond-the-blue-bottle

A classic demonstration to show the rates of reactions. A flask containing a colourless liquid (consisting of an alkaline solution of glucose and methylene blue) is shaken. The resulting increase in dissolved oxygen concentration oxidises the colourless form of the dye back to the blue form, until the glucose reduces it once again.

ADDITIONAL INFORMATION