✍ Scribed by A. Péter; G. Ács; P. Huhn
No coin nor oath required. For personal study only.
The thermal decomposition of azoethane (AE) was studied by detailed product analysis in the temperature and pressure intervals 508-598 K and 2.7-13.3 kPa. Besides the hydrocarbon products, three characteristic and quantitatively important nitrogen-containing compounds were also determined: ethyl-2-butyldiimide, ethanal-diethylhydrmone, and tetraethyl-hydrazine. Apart from the predominant termination reactions of the ethyl radical with itself and with the pz radical, the decomposition is characterized by a very short chain reaction. The measurements led to determination of the following rate constants and rate constant ratios:
kll/k12 = 1.3 t 0.1 for the following reactions:
(1)
C,H, + AE + C,H6 + CH2CH,N,CHzCH3 ( p l ) (5) CZH, + AE -+ CZH, + CH~CH-LN-N-CH~CH~ (pz) (11) (12) CZH, + -+ CH,CH=N-N=(CzH,)z CZH, + p2 -+ 2-C,H,N,C,H,
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