RENÉ  M  OETTERLI
RENÉ  M  OETTERLI
CHEMOLUMINESCENCE DIFFERENT COLOURS (GLOW STICKS)
NEEDED
     -  Diethyl phtalate
     -  Sodium acetate
     -  TCPO : Bis(2,4,6-trichlorophenyl)oxalate
     -  BPEA : 9,10-Bis(phenylethynyl)anthracene (green)
         Rubrene (yellow)
         DPA : 9,10-Diphenylanthracene (blue)
         Rhodamine B (red)
     -  Hydrogen peroxide

PROCEDURE

          Sodium acetate (20x mg), TCPO (10x mg), and a
     fluorescent dye (x mg; see below) are dissolved in
     diethyl phtalate (2x ml). Addition of 30% hydrogen
     peroxide (x ml) and subsequent shaking leads to
     intense chemoluminescence of the corresponding
     colour (the reaction lasts far over 10 hours).

          Dyes:
----------   Green : BPEA
----------   Yellow : Rubrene
----------   Blue : DPA
----------   Red : Rhodamine B    

LITERATURE
          A facile and effective chemiluminescence
     demonstration experiment
          A. G. Mohan, N. J. Turro, J. Chem. Educ., 1974, 51,
     528.
          DOI: 10.1021/ed051p528

MECHANISM
      
BPEA (l.) and DPA (r.) coloured
reaction.
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Dye* (excited)
Dye     +     Light
Dye
Rubrene (l.) and Rhodamine (r.) coloured reaction.
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2 CO2     +     Energy
H2O2