- Bis(2,4,5-trichlorophenyl-6-carbopentoxyphenyl)oxalate
Chembox new
ImageFile = Bis(2,4,5-trichlorophenyl-6-carbopentoxyphenyl)oxalate.svg
ImageSize =
IUPACName = Bis(2,4,5-trichlorophenyl-6- carbopentoxyphenyl)oxalate
OtherNames = CPPO
Section1 = Chembox Identifiers
CASNo = 30431-54-0
PubChem = 93137
SMILES =
Section2 = Chembox Properties
C=26|H=24|Cl=6|O=8
Appearance =
Density =
MeltingPt = 188–192 °C
BoilingPt =
Solubility =
Section3 = Chembox Hazards
MainHazards =
FlashPt =
Autoignition =Bis(2,4,5-trichlorophenyl-6-carbopentoxyphenyl)oxalate (CPPO) is a solid
ester whoseoxidation products are responsible for thechemiluminescence in aglowstick . It can be synthesized by reacting 2-carbopentoxy-3,5,6-trichlorophenol with oxalyl chloride.:
When mixed with hydrogen peroxide in an organic solvent 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 Cyanamid in the 1960's, the formulation containing CPPO, a fluorescor, 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:
References
Wikimedia Foundation. 2010.