• 4 months ago
Bis{3,4,6-trichloro-2-[(pentyloxy)carbonyl]phenyl} oxalate
When mixed with hydrogen peroxide in an organic solvent (diethyl phthalate, ethyl acetate, etc...) in the presence of a fluorescent dye CPPO causes the emission of light.


The reaction rate is pH dependent, and slightly alkaline conditions achieved by adding a weak base, e.g. sodium salicylate, will produce brighter light. Developed by American Cynamide in the 1960s, the formulation containing CPPO, a fluorescer, and a glass capsule containing Hydrogen peroxide and a base catalyst, all in dialkyl phthalate solvents, was marketed as Cyalume.

The following colors can be produced by using different dyes:

ColorCompoundBlue9,10-DiphenylanthraceneGreen9,10-Bis(phenylethynyl)anthraceneYellow-greenTetraceneYellow1-Chloro-9,10-bis(phenylethynyl)anthraceneOrange5,12-Bis(phenylethynyl)naphthacene, Rubrene, Rhodamine 6GRed2,4-Di-tert-butylphenyl 1,4,5,8-tetracarboxynaphthalene diamide, Rhodamine 101, Rhodamine B
ground: generally unusual (2)SE LIST mally When I meet you, my heart escapes like electrons

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