Accession Number : AD0464258


Title :   THE REACTION OF ATOMIC OXYGEN WITH ACETYLENE. (II) CHEMI-IONIZATION AND CHEMILUMINESCENCE


Descriptive Note : Technical rept.


Corporate Author : HARVARD UNIV CAMBRIDGE MA GIBBS CHEMICAL LAB


Personal Author(s) : Arrington, C A ; Brennen, W ; Glass, G P ; Michael, J V ; Niki, H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/464258.pdf


Report Date : Apr 1965


Pagination or Media Count : 34


Abstract : The chemiluminescence and chemi-ionization resulting from the room temperature reaction of atomic oxygen with acetylene were investigated. The absolute intensity of chemiluminescent radiation and the over-all rate of chemi- ion formation were measured and the relative intensities of various individual chemi-ions have been observed with a T.O.F. mass spectrometer. The CH (A to the 2nd power delta - X to the 2nd power pi) system was found to be the most intense feature of the chemiluminescent spectrum. Weak emission from the C2 Swan bands and from the CN violet system was also observed. The intensity of the weak OH emission was found to be consistent with it being produced by reactions with molecular oxygen. The CH emission was shown to arise from a complex series of reactions involving the participation of 3 molecules of acetylene and 2 atoms of oxygen. Two possible mechanisms for its production are discussed.


Descriptors :   *HYDROCARBONS , *CHEMILUMINESCENCE , *OXIDATION , ATOMS , MASS SPECTROSCOPY , OXYGEN , KINETIC THEORY , HEAT OF ACTIVATION , IONS , VISIBLE SPECTRA , BAND SPECTRA , ULTRAVIOLET SPECTRA , EXCITATION , REACTION KINETICS , IONIZATION


Subject Categories : Radiation and Nuclear Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE