ACTION OF $gamma$-RAYS ON AQUEOUS SOLUTIONS OF CARBON MONOXIDE

Journal Article · Mon Jul 01 04:00:00 EDT 1963 · Transactions of the Faraday Society (England) Superseded by J. Chem. Soc., Faraday Trans., I and II

DOI:https://doi.org/10.1039/tf9635901631· OSTI ID:4651319

Raef, Y; Swallow, A J

Solutions of CO (4.84 x 10/sup -4/ M) in 0.1 N H/sub 2/SO/sub 4/ (oxygenfree) were irradiated with gamma rays ( approximates 30,000 rad/h) and found to give H with G = 0.95, CO/sub 2/ G = 2.6, formaldehyde G = 0.5, glyoxal G = 0.3, and formic acid G = 0.4. Hydrogen peroxid could not be detected. The results are interpreted in term of a mechanism involving CHO and COOH radicals, some of the products being secondary. The effect of variations in acidity were investigated, a striking observation being that formic acid is produced with G = 44 in alkaline solution. In the presence of ferrous ions (2 x 10/sup -1/ 2 x 10/ sup -9/ M Fe/sup 2+/ 0.1 N H/sub 2/SO/sub 4/ no ferric was produced, but in the presence of ferric ions (2 x 10/sup -4/ 1 x 10/sup -9/ M Fe/sup 3+/, 0.1 N H/sub 2/SO/sub 4/) ferrous ions are produced with G = 8.3--8.4. The ratio of the rate constants for the reactions H + HCHO to H + CO ( in 0.1 N H/sub 2/ SO/sup 4/ is 14.8 plus or minus 3, of OH + CO to OH + Fe/sup 21/ (in 0.1 N H/sub 2/SO/sub 4/ ) is 8.8 plus or minus 0.5, and of H + CO to H + H/sup +/ + Fe/sup 21/ (in 0.1 N H/sub 2/SO /sub 4/ is 2.2 plus or minus 0.3, all at 23 deg C. (auth)

• Research Organization: Imperial Coll. of Science and Tech., London
• NSA Number: NSA-17-034039
• OSTI ID: 4651319
• Journal Information: Transactions of the Faraday Society (England) Superseded by J. Chem. Soc., Faraday Trans., I and II, Journal Name: Transactions of the Faraday Society (England) Superseded by J. Chem. Soc., Faraday Trans., I and II Vol. Vol: 59; ISSN TFSOA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
ALDEHYDES
CARBON DIOXIDE
CARBON MONOXIDE
CATIONS
CHEMICAL REACTIONS
CHEMISTRY
CONFIGURATION
DIAGRAMS
ETHYL RADICALS
FORMALDEHYDE
FORMIC ACID
FREE RADICALS
GAMMA RADIATION
GASES
GLYOXAL
HYDROGEN
HYDROGEN PEROXIDES
HYDROXIDES
IRON COMPOUNDS
IRRADIATION
MEASURED VALUES
MIXING
OXIDATION
OXYGEN
PRODUCTION
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION DOSES
REACTION KINETICS
REDUCTION
SOLUTIONS
SULFURIC ACID
TABLES
WATER