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Thermal unimolecular decomposition of 1,3,5-trioxane: Comparison of theory and experiment

✍ Scribed by H. K. Aldridge; X. Liu; M. C. Lin; C. F. Melius

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 434 KB
Volume: 23
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550231009

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✦ Synopsis

The unimolecular decomposition of 1,3,5-trioxane into three formaldehyde molecules has been studied thermally at eight temperatures between 523 and 603 K using mixtures highly diluted with Ar. Under these conditions, the only decomposition product detected by means of FTIR analysis was formaldehyde. At 588 K, the effect of total pressure was examined between 25 and 800 torr; a noticeable decline in the first-order rate constant was observed only at pressures below 500 torr. A least-squares analysis of the measured high-pressure, first-order rate constants leads to exp[(-25,620 f 254)/T] s-'. k -10157820.19

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