The kinetics of the ethane pyrolysis have been studied at temperatures from 550 to 596'C and with 0 to 620,; of added nitric oxide. The rates of production of various products were studied by gas chromatography; ethylene, hydrogen, methane, nitrogen, water, nitrous oxide and acetonitrile were found
The pyrolyses of tri- and tetramethylethylene in the presence of nitric oxide
โ Scribed by H.-P. Schuchmann; K. J. Laidler
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 448 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0538-8066
No coin nor oath required. For personal study only.
โฆ Synopsis
The pyrolyses of trimethylethylene and tetramethylethylene have been investigated in It appears that apart from a unimolecular the presence and absence of nitric oxide. split, e.g.,
a disproportionation reaction such as may play an important role in initiation. Nitric oxide had no effect on Hz production, which is probably a molecular process. There was similar behavior of both compounds in the presence of NO, indicating that the olefinic hydrogen atom does not play a decisive role. Other aspects of the mechanisms are discussed.
๐ SIMILAR VOLUMES
The recombination of iodine atoms following the flash photolysis of iodine in the presence of nitric oxide is interpreted through the mechanism ki k-i with k~ = 3.5 X lo9 1.2/rno12-sec; kz = 1 X 10" l./rnol.sec; k3 = 2.1 X LO7 l./mol-sec at 298ยฐK; E3 = 11 kJ/ rnol; and AH"] = 76 f 6 kJ/mol. Lower a
Although our pyrolytic studies of five alkyl nitrites (RONO) have shown that it is possible to determine precise, acceptable values for k 1: (0 RONO -RO + NO we have been uncertain about the mechanism for the first order production of nitroxyl from primary and secondary nitrites. Nitroxyl could ari