Concurrent molecular and free radical mechanisms in the thermal decomposition of nitrogen dioxide

1962 ◽  
Vol 58 ◽  
pp. 253 ◽  
Author(s):  
P. G. Ashmore ◽  
M. G. Burnett
Keyword(s):  
Thermal Decomposition ◽  
Free Radical ◽  
Nitrogen Dioxide

The thermal decomposition of RDX at temperatures below the melting point. III. Towards the elucidation of the mechanism

1971 ◽  
Vol 24 (5) ◽  
pp. 945 ◽  
Author(s):  
JJ Batten
Keyword(s):  
Thermal Decomposition ◽  
Free Radical ◽  
Melting Point ◽  
Nitrogen Dioxide ◽  
The Other ◽  
Decomposition Products ◽  
Radical Traps

The rate of thermal decomposition of RDX has been investigated in the presence of its decomposition products and free radical traps. From the measurements, it is concluded that formaldehyde and nitrogen dioxide, presumably ?encaged? in the sample, catalyse the decomposition of RDX positively and negatively respectively. The non-volatile residue also acts as a positive catalyst. The other products have little or no effect on the rate, and the free radical traps did not reduce the rate.

THE KINETICS OF THE THERMAL DECOMPOSITIONS OF THE LOWER PARAFFINS: V. THE NITRIC OXIDE INHIBITED DECOMPOSITION OF n-BUTANE

1940 ◽  
Vol 18b (1) ◽  
pp. 1-11 ◽  
Author(s):  
E. W. R. Steacie ◽  
H. O. Folkins
Keyword(s):  
Nitric Oxide ◽  
Thermal Decomposition ◽  
Free Radical ◽  
High Pressures ◽  
Free Radical Processes ◽  
Temperature Range ◽  
Radical Recombination ◽  
Radical Processes ◽  
Kinetics Of ◽  
Good Agreement

A detailed investigation of the inhibition by nitric oxide of the thermal decomposition of n-butane has been carried out over the temperature range 500° to 550 °C.In all cases it was found that inhibition decreased with increasing butane concentration. This suggests that radical recombination occurs in the normal decomposition by ternary collisions with butane molecules acting as third bodies.The activation energies of the normal and inhibited reactions have been determined. For high pressures the two values are in good agreement, viz., 58,200 and 57,200 cal. per mole respectively. The products of the inhibited reaction were also found to be the same as those of the normal reaction.It is concluded that free radical processes predominate, involving comparatively short chains.

Free-radical nitration of naphthalene with nitrogen dioxide in carbon tetrachloride and implications for environmental nitrations

1989 ◽  
Vol 54 (3) ◽  
pp. 548-552 ◽  
Author(s):  
Giuseppe L. Squadrito ◽  
Frank R. Fronczek ◽  
Daniel F. Church ◽  
William A. Pryor
Keyword(s):  
Free Radical ◽  
Carbon Tetrachloride ◽  
Nitrogen Dioxide

THE KINETICS OF THE THERMAL DECOMPOSITION OF VINYL ISOPROPYL ETHER

1953 ◽  
Vol 31 (4) ◽  
pp. 418-421 ◽  
Author(s):  
Arthur T. Blades
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Free Radical ◽  
Ethyl Ether ◽  
Close Agreement ◽  
Flow System ◽  
Isopropyl Ether ◽  
Radical Decomposition ◽  
A Minor ◽  
Kinetics Of

The thermal decomposition of vinyl isopropyl ether in the presence of toluene has been studied in a flow system in the temperature range 447–521 °C. In this range, the data indicate a purely intramolecular decomposition into propylene and acetaldehyde, the activation energy for the reaction being in close agreement with that found for the decomposition of vinyl ethyl ether. At 570 °C. a minor free radical decomposition of the ether becomes apparent. Some qualitative studies of the decomposition of vinyl isobutyl ether are also reported.

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