Accession Number : AD0683277

Title :   DETECTION OF A CAPTURED ELECTRON IN IRRADIATED FROZEN AQUEOUS SOLUTIONS OF ALKALIS BY THE ELECTRON PARAMAGNETIC RESONANCE METHOD,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Ershchov,B. G. ; Pikaev,A. K.

Report Date : 16 FEB 1968

Pagination or Media Count : 14

Abstract : In earlier work the hydrated electron produced by the effect of ionizing radiation on water was detected with the aid of EPR. The present study was made on frozen solutions, for which the probability of the hydrated electron is the largest. The EPR solutions of NaNO3 irradiated at 77K, and of concentrated solutions of KOH, irradiated at 77K, are analyzed and the radicals responsible for the different fine structure lines are identified. The measured line widths and the corresponding g-factors, as well as data obtained by others, lead to the conclusion that in the radiolysis of water and aqueous solutions, the primary radiolysis product, which has reducing properties, is the hydrated electron, which becomes stabilized in alkaline solutions at low temperatures. The character of its EPR spectrum indicates that the nearest neighboring of the electron are water molecules and not cations. The nature of the observed paramagnetic center is discussed in light of these results and published data. (Author)

Descriptors :   (*RADIATION CHEMISTRY, ELECTRON CAPTURE), (*ELECTRON CAPTURE, SOLUTIONS(MIXTURES)), ALKALI METAL COMPOUNDS, PARAMAGNETIC RESONANCE, IONIZATION, PHOTOLYSIS, LINE SPECTRA, ICE, SODIUM COMPOUNDS, NITRATES, POTASSIUM COMPOUNDS, HYDROXIDES, USSR

Subject Categories : Radiation and Nuclear Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE