## Abstract The methyl migration between the protonated __N__,__N__βdimethylisopropylamine and other neutral aliphatic amines in the gas phase has been investigated by a hybrid external chemical ionization source ion trap mass spectrometer. Similar reactions have been found in the aqueous solution
Comparative study of flame propagation in compounds containing nitrogen oxides
β Scribed by S. de Jaegere; A. van Tiggelen
- Publisher
- Elsevier Science
- Year
- 1959
- Tongue
- English
- Weight
- 615 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0010-2180
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β¦ Synopsis
Flame propagation velocities and temperatures have been measured in methyl nitrite, nitromethane and methane-nitrogen dioxide mixtures with oxygen.
Mixtures of methyl nitrite or methane plus nitrogen dioxide with sufficient oxygen behave like more classical fuel-oxidant mixtures. Activation energies and reaction orders with respect to ]uel and oxidant have been derived. Very rich methyl nitrite-oxygen flames are to be compared with pure methyl nitrite decomposition flames: their burning velocities are abnormally low. Nitromethane-oxygen [lames are characterized by a low activation, but are much slower than what might be expected from the theory.
π SIMILAR VOLUMES
Total emission intensities of OH\*, Clt\*, C2", NH\*. and CN\* m the reaction zone, saturation currents. unburned hydrocarbons, and NO x in the exhaust gases were measured in atmospheric pressure, hydrocarbon-ai[ flames with and without added fuel N (NO and NH3). It has been found that the overall
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract Solvent effects on the ^1^H NMR parameters of perhydroβoxazolo[3,4β__a__]pyridine, perhydropyrido[1,2β__c__]β[1,3]oxazine and perhydrothiazolo[3,4β__a__]pyridine derivatives are described. Particularly marked are changes in the protonβproton geminal coupling constants of the NCH~2~O and