TCPO
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| TCPO | |
|---|---|
| File:TCPO.png | |
| Oxalic acid bis-(2,4,6-trichloro-phenyl) ester | |
| Other names Bis(2,4,6-trichlorophenyl) oxalate, bis(2,4,6-trichlorophenyl) ethanedioate | |
| style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers | |
| CAS number | 1165-91-9 |
| ChemSpider | 141097 |
| SMILES | Script error: No such module "collapsible list". |
| InChI | Script error: No such module "collapsible list". |
| style="background: #F8EABA; text-align: center;" colspan="2" | Properties | |
| Molecular formula | C14H4Cl6O4 |
| Molar mass | 448.9 g mol−1 |
| Appearance | white crystalline powder |
| Density | 1.698 g/cm3 |
| Melting point |
188 - 192 °C |
| Boiling point |
500.9 °C |
| Solubility in water | 0.01962 mg/L |
| style="background: #F8EABA; text-align: center;" colspan="2" | Hazards | |
| Flash point | 190.6 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
TCPO, or bis-2,4,6-(trichlorophenyl)oxalate, is the main chemical in glow sticks.
Uses
TCPO is one of the major ingredients in glow sticks. When combined with 9,10-bis(phenylethynyl)anthracene, a solvent (such as diethyl phthalate), and a weak base (usually sodium acetate or sodium salicylate), and hydrogen peroxide, the mixture will start to weakly glow an aqua-green color[1].
Red, yellow and blue colours can be made by replacing the 9,10-bis(phenylethynyl)anthracene with Rhodamine B, Rubrene and 9,10-diphenylanthracene respectively.
In a glowstick a fluorescent dye converts much of the light energy produced into the visible spectrum producing a brighter glow.
Preparation
TCPO can be prepared from a solution of 2,4,6-trichlorophenol in a solution of dry toluene by reaction with oxalyl chloride in the presence of a base such as triethylamine. This method produces crude TCPO with a by-product of triethylamine hydrochloride.
References
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- ↑ How to Make a Glow Stick with Real Chemicals - http://sites.google.com/site/nurdrage/chemistry-experiments/how-to-make-a-glow-stick-with-real-chemicals
