Slow combustion and cool flames

In a quartz vessel an equimolar ethylene oxide- oxygen mixture gives rise to cool flames quite readily between about 260 and 380 °C [60]. The slow combustion has been studied in detail above and below the optimum conditions for cool flame formation, and the kinetics in the two regions are quite different [61]. At 420 °C the rate obeyed the law 

The reaction rate does not show any marked negative-temperature coefficient, and the apparent activation energy calculated from the slope of the log (d[02 ] /dt) versus 1/T graph was about 14 kcal. mole .  

In addition to carbon monoxide, carbon dioxide and water, the products included methanol and a hydrocarbon assumed to be methane. Acids and peracids were detected, while at 298 °C hydrogen peroxide was present. 

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