Skip to main navigation Skip to search Skip to main content

Greening the Traffic Light: Air Oxidation of Vitamin C Catalyzed by Indicators

  • Urawadee Rajchakit
  • , Taweetham Limpanuparb
  • Mahidol University

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Modifications of the classical blue bottle experiment, air oxidation of glucose catalyzed by methylene blue under alkaline conditions, were investigated. Following the green chemistry formulation proposed by Wellman and Noble, we studied the visual behaviors of air oxidation of Vitamin C catalyzed by redox indicators. New formulations for the chemical traffic light and vanishing valentine experiments are presented in this paper. We also report, for the first time, chemical pattern formation in this oxidation reaction of ascorbic acid. These results open many possibilities for laboratory practicals as well as demonstration activities.

Original languageEnglish
Pages (from-to)1486-1489
Number of pages4
JournalJournal of Chemical Education
Volume93
Issue number8
DOIs
Publication statusPublished - 9 Aug 2016

Keywords

  • Demonstrations
  • Dyes/Pigments
  • Graduate Education/Research
  • Interdisciplinary/Multidisciplinary
  • Kinetics
  • Mechanisms of Reactions
  • Oxidation/Reduction
  • Upper-Division Undergraduate

Fingerprint

Dive into the research topics of 'Greening the Traffic Light: Air Oxidation of Vitamin C Catalyzed by Indicators'. Together they form a unique fingerprint.

Cite this