Low temperature oxidation of plutonium

Identifying the Plutonium Oxidation States

of elements to exhibit four common oxidation states: Pu(III), Pu(IV), Pu(V), and Pu(VI). In addition, plutonium complexes in aqueous solution can change their oxidation state by undergoing disproportionation or reproportionation reactions, or through radiolytic reactions. Because so many plutonium species can form and interact in solution, aqueous plutonium chemistry can be remarkably complex. ...

Study of the low temperature oxidation of propane.

The low-temperature oxidation of propane was investigated using a jet-stirred reactor at atmospheric pressure and two methods of analysis: gas chromatography and synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS) with direct sampling through a molecular jet. The second method allowed the identification of products, such as molecules with hydroperoxy functions, which ar...

Experimental confirmation of the low-temperature oxidation scheme of alkanes.

Predictive Kinetic Modeling of Low-Temperature Hydrocarbon Oxidation

Low temperature oxidation in the gas and condensed phases has been the subject of experimental investigations for many decades owing to applications in many areas of practical significance like thermal stability, combustion, atmospheric chemistry and industrial syntheses. Owing to several practical limitations it has proven difficult to understand these processes at a mechanistic level from exp...

Low temperature photo-oxidation of chloroperoxidase Compound II.

Oxidation of the heme-thiolate enzyme chloroperoxidase (CPO) from Caldariomyces fumago with peroxynitrite (PN) gave the Compound II intermediate, which was photo-oxidized with 365 nm light to give a reactive oxidizing species. Cryo-solvents at pH ≈ 6 were employed, and reactions were conducted at temperatures as low as -50° C. The activity of CPO as evaluated by the chlorodimedone assay was una...