EFFECTS OF IONIZING RADIATIONS ON AQUEOUS SOLUTIONS OF FORMIC AND OXALIC ACID
Abstract
In aquous solutions CO2 and bicarbonate react with negatively charged polarons (H2O)- formed by the irradiation of water by gamma-rays, leading to formation of the carboxyl radical ion. In the presence of organic solutes, the carboxyl radical ion may add on to other free radicals, e.g. those formed by the action of radiation produced OH radicals on organic solutes, to give the corresponding carboxylic acids. Using C-14 labelled carbon dioxide or bicarbonate, this process could provide a method for the production of carboxylic acids labelled in the carboxyl group. In neutral solutions two reducing species, i.e. negative polarons and primarily formed H atoms, have been shown to be present in irradiated water; their reactions with various solutes have been studied. All irradiations were carried out with Co-60 gamma rays. For irradiation of aqueous solutions in the presence and absence of different gases (O2, CO2, N2O) standard irradiation techniques were used. Analysis of the gaseous irradiation products was carried out by means of the mass-spectrometer. Other irradiation products were determined spectrophotometrically or by radioactive tracer techniques.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1962
- Accession Number
- AD0403358
Entities
People
- Joseph J. Weiss
Organizations
- Durham University