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Spectroscopic studies of the heliumacetylene flame

✍ Scribed by D.H. Winicur; J.L. Hardwick; S.N. Murphy

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
623 KB
Volume
53
Category
Article
ISSN
0010-2180

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✦ Synopsis

The products of the electronically excited, metastable He* + C2H 2 diffusion flame reaction, using a dc discharge diffusion flame technique, are C2", CH*, H*, C*, and possibly C4H* or :C=CH 2 (vinylidene). The primary reactions observed in the flame are He* + C 2H 2 -"* C 2* + H* + H + He and He* + C 2 H 2 "* CH* + CH + He. This flame produces an extremely bright source of C 2 emission over the entire optical range. The translational and rotational temperatures in the flame are equal to each other with an average value of 1100 + 300K. Secondary reactions in the flame produce several dense bands in the red which are likely due to soot-forming precursor molecules.

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