CHEMICAL ACTION OF IONISING RADIATIONS IN SOLUTION. PART XXI. THE ACTION OF $sup 60$Co $gamma$-RADIATION ON AQUEOUS SOLUTIONS OF ETHYLENE AT DIFFERENT PRESSURES

Journal Article · Sun Jun 01 04:00:00 EDT 1958 · Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc.

DOI:https://doi.org/10.1039/jr9580002175· OSTI ID:4334244

Clay, P G; Johnson, G R.A.; Weiss, J

Cobalt-60 irradiation of water saturated with ethylene (1 atm.), in the absence of oxygen, yields aldehydes, mainly acetaldehyde and n-butyraldehyde, and hydrogen peroxide, together with an oily polymer. From water, saturated with different ethylene-oxvgen mixtures, the irradiation products are: acetaldehyde, formaldehyde, glycollaldehyde, hydrogen peroxide, and relatively small amounts of an organic hydroperoxide. Their formation at different ratios of (ethylenel/ (oxygen!, at different pH values, and in the presence of added ferrous salt has been studied. Irradiations of aqueous ethylene-oxygen solutions at higher pressures (up to 10 atm.) showed that the products and their yields, under these conditions, are not markedly different from those at lower pressures. (auth) The formation of H/saub 2/O/sub 2/ by UV and ionizing radiation under various experimental conditions was followed by means of the electrochemical determirtion of H/sub 2/O/sub 2/. The method of anode measurement permits 2 x 10/sup -8/ mole/ l of H/sub 2/O(sub 2/ to be detected and recorded contiuously. Zinc oxide was used for the absorption of the UV radiation. The quantity of H/sub 2/O/sub 2/ formed is directly proportional to the ZnO concentration. A linear dependence between the H202 produced and the irradiation time as well as the radiation intensity was found. With x radiabon, the quantity of H/sub 2/O/sub 2/ formed at constant voltage is proportional to the irradiation dosage (max time). The formation rate of H/sub 2/O/sub 2/ up to 2000 mu g/l shows a linear dependence on the O/sub 2/ concentration. Co/sup 60/ and Ir/sup 192/, used as gamma radiation sources, show a proportionality between the peroxtde formed and the exposure time on the one hand and the radioactivity of the source used on the other. For the formation of H/sub 2/O/sub 2/ in water solutions, the secondnry electrons formed or the photoelectrons are the determinant as they are in the radiation of solutions containing ZnO. An investigation was also made using Sr/ sup 90/ as a beta source and it showed that here also peroxide was formed in small quantities. (tr-auth)

• Research Organization: Oxford Univ.
• NSA Number: NSA-12-013028
• OSTI ID: 4334244
• Journal Information: Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc., Journal Name: Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc.; ISSN JCSOA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETALDEHYDE
ACETIC ACID
ACIDITY
ALDEHYDES
BUTYL RADICALS
BUTYRIC ACID
CATALYSIS
CHEMICAL REACTIONS
CHEMISTRY
COBALT 60
ETHYLENE
FORMALDEHYDE
FORMIC ACID
GAMMA RADIATION
GAMMA SOURCES
GLYCOLS
HYDROGEN PEROXIDES
IRON COMPOUNDS
IRRADIATION
OILS
OXIDES
OXYGEN
POLYMERS
PRESSURE
RADIATION CHEMISTRY
RADIATION EFFECTS
SOLUTIONS
WATER