Isotopic composition of radiolytic hydrogen evolved from mixtures of benzene and cyclohexane with their deuterated analogues

Journal Article · Sat Sep 01 04:00:00 EDT 1962 · Canadian Journal of Chemistry

DOI:https://doi.org/10.1139/v62-268· OSTI ID:4782825

Dyne, P. J.; Jenkinson, W. M.

The isotopic composition of radiolytic hydrogen evolved from miktures of benzene and cyclohexane with their deuterated analogues was measured. The data are interpreted in terms of first-order processes of the kinetic form (for C₆D₁₂) C₆D₁₂ yields C₆D₁₀ + D₂ and second - order processes C₆D₁₂ yields X_D + R, X_D + C₆H₁₂ yields HD + R. A complete kinetic analysis for the system C₆D₆-- C₆H₆ was made from measurements at the two ends of the concentration range. This gives a satisfactory prediction of the isotopic composition of hydrogen evolved from an equimolar C₆H₆ -- C₆D₆ mixture. A first-order yield of D₂ is found in solutions of C₆D₁₂ in benzene which persists to zero'' C₆D₁₂ concentration. The mechanisms of the first-order process studied in these experiments, and of the unscavengeable'' or molecular'' yields of radiolytic hydrogen, are discussed.

• Research Organization: Atomic Energy of Canada Ltd., Chalk River, Ont.
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-030453
• OSTI ID: 4782825
• Journal Information: Canadian Journal of Chemistry, Journal Name: Canadian Journal of Chemistry Journal Issue: 9 Vol. 40; ISSN 0008-4042
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
BENZENE
CYCLOALKANES
DECOMPOSITION
DEGASSING
DEUTERIUM
DEUTERIUM COMPOUNDS
HEXANE
HYDROGEN
MEASURED VALUES
MIXING
QUALITATIVE ANALYSIS
RADIATION CHEMISTRY
RADIOLYSIS
REACTION KINETICS