Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Tracer studies with oxygen isotopes

Normal pentane oxidation was also the subject of an investigation by Cullis and Hirschler [189] with respect to the formation of 1- and 2-pentene, and the effect of their addition to pentane + oxygen mixtures. Mechanisms of reaction were interpreted from radioactive isotope tracer studies by addition of substituted pentenes to the reactants [189], albeit under conditions involving appreciable temperature change. In an earlier study, Chung and Sandler [26] showed that the proportion of pentenes formed during pentane oxidation in a flow system reached a maximum at a reactor temperature of about 750 K. [Pg.617]

A tracer study of the mechanism of the rearrangement of thiolsulphinate with acetic anhydride using 13C and lsO has been carried out by Oae and coworkers194. A deuterium isotope effect study of the mechanism of the reactions of singlet oxygen with allylic and vinylic sulphides,... [Pg.658]

Electron microprobe analysis and secondary ion mass spectroscopy (SIMS) combined with sputtering techniques also provide excellent tools for studying penetration and diffusion of foreign ions. As oxygen does not have a radioactive isotope suitable for tracer studies, SIMS is particularly useful for studying oxygen diffusion employing the stable isotope. [Pg.119]

The participation of specific bulk metal oxide bonds in catalytic oxidation reactions (with the aid of oxygen-18 isotopic tracer studies)... [Pg.812]


See other pages where Tracer studies with oxygen isotopes is mentioned: [Pg.30]    [Pg.534]    [Pg.236]    [Pg.197]    [Pg.209]    [Pg.443]    [Pg.32]    [Pg.346]    [Pg.220]    [Pg.260]    [Pg.1365]    [Pg.2]    [Pg.301]    [Pg.2579]    [Pg.45]    [Pg.122]    [Pg.159]    [Pg.124]    [Pg.167]    [Pg.240]    [Pg.242]    [Pg.646]    [Pg.573]    [Pg.275]    [Pg.157]    [Pg.711]    [Pg.103]    [Pg.179]    [Pg.153]    [Pg.198]    [Pg.454]    [Pg.139]    [Pg.341]    [Pg.889]    [Pg.706]    [Pg.647]    [Pg.43]    [Pg.120]    [Pg.197]    [Pg.100]    [Pg.280]    [Pg.80]    [Pg.243]    [Pg.367]    [Pg.139]   
See also in sourсe #XX -- [ Pg.80 ]




SEARCH



Isotope tracer studies

Isotopic oxygen

Oxygen studies

Studies with

Tracer studies

Tracers isotopes

Tracers oxygen

© 2024 chempedia.info