Accession Number : AD0708543

Title :   THE THERMAL GROWTH OF THE FORMYL RADICAL AT 87K IN A 50% METHANOL-WATER MATRIX,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Morgan,Cornelius U.

Report Date : MAY 1970

Pagination or Media Count : 20

Abstract : Formyl radicals were produced by ultraviolet irradiation of a 50% methanol-water matrix at 77K and the electron spin resonance (ESR) signal was monitored first at 77K and then at 87K. No signal change was observed as a function of monitoring time at 77K but at 87K the signal amplitude increased. The following are proposed as possible explanations. Hydrogen atoms escape from traps and diffuse through the matrix and (1) react with carbon monoxide molecules at 87K to form formyl radicals or (2) abstract a hydrogen atom from formaldehyde to form formyl radicals and molecular hydrogen. (Author)

Descriptors :   (*FREE RADICALS, *FORMALDEHYDE), (*CARBINOLS, *PHOTOCHEMICAL REACTIONS), (*ELECTRON PARAMAGNETIC RESONANCE, FREE RADICALS), WATER, CARBON MONOXIDE

Subject Categories : Radiation and Nuclear Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE