Mass spectrometric studies of chemical reactions in shock waves: the thermal decomposition of nitrous oxide

1969 ◽  
Vol 47 (4) ◽  
pp. 521-538 ◽  
Author(s):  
S. C. Barton ◽  
J. E. Dove
Keyword(s):  
Thermal Decomposition ◽  
Shock Waves ◽  
Rate Coefficient ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Unimolecular Decomposition ◽  
Reflected Shock ◽  
Secondary Reactions ◽  
Gas Reactions ◽  
Collision Mechanism

Apparatus for the mass spectrometric study of rapid gas reactions in reflected shock waves is described. This apparatus has been applied to the thermal decomposition of 2% N2O in Kr at total gas concentrations of about 1.6 × 10−6 mole cm−3, in the temperature range 1800 to 2800 °K. The principal products of the reaction were found to be N2, O2, NO, and O. The rate coefficient for the unimolecular decomposition of N2O was calculated from the experimental data, and the rates of the secondary reactions between O and N2O were estimated. The possibility of the occurrence of a "weak collision" mechanism in the unimolecular reaction of N2O is discussed.

Mass spectrometric studies of chemical reactions in shock waves. Part II. The thermal decomposition of diazomethane

1970 ◽  
Vol 48 (23) ◽  
pp. 3623-3634 ◽  
Author(s):  
J. E. Dove ◽  
J. Riddick
Keyword(s):  
Mass Spectrometry ◽  
Thermal Decomposition ◽  
Shock Waves ◽  
Vibrational Energy ◽  
Mass Spectrometric ◽  
Unimolecular Decomposition ◽  
Vibrationally Excited ◽  
Flight Mass Spectrometry ◽  
Concentration Changes ◽  
Products Of Reaction

The thermal decomposition of CH2N2, highly diluted in Kr, has been studied in shock waves by using time-of-flight mass spectrometry to follow concentration changes in the reacting gas. Observations were made at pressures 45 to 95 Torr and temperatures 820 to 1200°K. The principal products of reaction are C2H4, C2H2, and N2. The primary step appears to be a second order unimolecular decomposition of CH2N2 into CH2 and N2; for this step, log k = (9.61 ± 0.21) − (15 800 ± 1 000)/2.303RT(cal mole−1 and cm3 mole s units.) Some decomposition of CH2N2 into HCN and NH is also indicated. The formation of C2H2 is believed to occur through vibrationally excited C2H4, formed by reaction between CH2 and CH2N2. Calculations using the R.R.K.M. theory indicate that 50 + 10% of the energy of this reaction appears as vibrational energy of the product C2H4.

Experimental and Modeling Study of the Thermal Decomposition of C3–C5 Ethyl Esters Behind Reflected Shock Waves

2014 ◽  
Vol 118 (10) ◽  
pp. 1785-1798 ◽  
Author(s):  
Wei Ren ◽  
R. Mitchell Spearrin ◽  
David F. Davidson ◽  
Ronald K. Hanson
Keyword(s):  
Thermal Decomposition ◽  
Shock Waves ◽  
Ethyl Esters ◽  
Reflected Shock ◽  
Modeling Study

Mass spectrometric study of C2-hydrocarbons - Oxidation in shock waves -

1981 ◽  
Vol 29 (2) ◽  
pp. 191-198 ◽  
Author(s):  
Yoshiaki Hidaka ◽  
Yoshinori Tanaka ◽  
Hiroyuki Kawano ◽  
Masao Suga
Keyword(s):  
Shock Waves ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study ◽  
C2 Hydrocarbons

Mass-spectrometric study of thermal decomposition of diethylzinc and diethyltellurium

1992 ◽  
Vol 2 (9) ◽  
pp. 923-930 ◽  
Author(s):  
Hervé Dumont ◽  
Alain Marbeuf ◽  
Jean Eric Bourée ◽  
Ouri Gorochov
Keyword(s):  
Thermal Decomposition ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study
Sign in / Sign up

Export Citation Format

Share Document