ChemInform Abstract: A MODERN FLOW REACTOR FOR KINETIC MEASUREMENTS OF GAS PHASE THERMAL REARRANGEMENTS- THERMOLYSIS KINETICS OF SOME NEW SMALL RING COMPOUNDS

1977 ◽  
Vol 8 (39) ◽  
pp. no-no
Author(s):  
L.-U. MEYER ◽  
A. DE MEIJERE
2016 ◽  
Vol 41 (4) ◽  
pp. 418-427 ◽  
Author(s):  
David Lokhat ◽  
Maciej Starzak ◽  
Deresh Ramjugernath

The gas-phase reaction of hexafluoropropene and molecular oxygen was investigated in a tubular flow reactor at 450 kPa and within a temperature range of 463–493 K using HFP/O2 mixtures containing 20–67% HFP on a molar basis. Capillary and packed column chromatography served as the main analytical technique. The reaction yielded HFPO, COF2, CF3COF, C2F4 and c-C3F6 as gas-phase products. High molecular weight oligomers were also formed. The oligomers were found to have a polyoxadifluoromethylene structure according to elemental and 19F NMR analysis. At 493 K HFP is proposed to undergo oxygen-mediated decomposition to difluorocarbene radicals, yielding greater quantities of difluorocarbene recombination products. Kinetic parameters for a revised model of the oxidation process were identified through least squares analysis of the experimental data.


1992 ◽  
Vol 125 (3) ◽  
pp. 711-721 ◽  
Author(s):  
Henning Hopf ◽  
Gerhard Wachholz ◽  
Robin Walsh

1993 ◽  
Vol 26 (S1) ◽  
pp. 168-170 ◽  
Author(s):  
L. Lian ◽  
F. Akhtar ◽  
J. M. Parsons ◽  
P. A. Hackett ◽  
D. M. Rayner

1972 ◽  
Vol 76 (20) ◽  
pp. 2817-2819 ◽  
Author(s):  
Stanley F. Sarner ◽  
David M. Gale ◽  
Henry K. Hall ◽  
Adah B. Richmond
Keyword(s):  

Author(s):  
T. Beiderhase ◽  
Walter Hack ◽  
Karlheinz Hoyermann ◽  
Matthias Olzmann

Fluorinated hydrocarbon radical-radical reactions in the gas phase have been studied at low pressure (0.5 ≤ p/mbar ≤ 2) and low temperature (253 ≤ T/K ≤ 333) using the discharge flow reactor molecular beam sampling mass spectrometry (MS) technique. Stable and labile species have been detected by MS applying low energy electron impact as well as multiphoton ionisation.For the combination reactionCHthe rate coefficient kCHis the main channel (k(1b)/kFor the CHFCHFthe rate coefficient was measured as kNo pressure dependence of k


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