Journal of Radioanalytical and Nuclear Chemistry

, Volume 173, Issue 2, pp 339–349 | Cite as

Reduction of the quinizarin molecule in methanol as studied by γ-radiolysis

  • R. Krasiukianis
  • J. Mayer


The disproportionation of quinizarin semiquinones in methanol solutions of different pH has been investigated using the γ-radiolysis method. After60Co-irradiation of deaerated solutions the corresponding changes in the optical absorption spectra were recorded. In solutions of different pH the semiquinones disproportionate to give appropriate forms of quinizarin hydroquione which can react with oxygen to regenerate the parent compound. In neutral and acidic methanol the corresponding form of hydroquinone (1,4,9,10-tetrahydroxyanthracene) undergoes a transformation leading to formation of 9,10-dihydroxy-2,3-dihydro-1,4-anthraquinone which is unreactive towards oxygen.


Oxygen Methanol Physical Chemistry Inorganic Chemistry Absorption Spectrum 
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Copyright information

© Akadémiai Kiadó 1993

Authors and Affiliations

  • R. Krasiukianis
    • 1
  • J. Mayer
    • 1
  1. 1.Institute of Applied Radiation ChemistryTechnical UniversityLódz(Poland)

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