Ethylene as a Scavenger in the Radiolysis of Liquid Cyclopentane ¹

Journal Article · Sun Apr 01 04:00:00 EST 1962 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/j100810a036· OSTI ID:4782186

Holroyd, Richard A.

Ethylene, when present as a scavenger during the radiolysis of liquid cyclopentane, leads to two additional products, ethane and ethylcyclopentane. Ethyl radicals are formed by addition of hydrogen atoms to ethylene. Cyclopentyl radicals either add to ethylene or combine with radicals depending on the dose rate. The activation energy for addition of cyclopentyl radicals to ethylene is 6.7 + 1/2E₄, where E₄ is the energy of activation for recombination of cyclopentyl radicals in solution. At relatively low dose rates, the rate of formation of ethylcyclopentane is proportional to the ethylene concentration times the square root of the dose rate. lt is estimated that the rate of disproportionation of ethyl and cyclopentyl radicals relative to recombination in the liquid phase is l.7. Radicals addition to unsaturates becomes an important secondary reaction at low dose rates in the radiolysis of saturated hydrocarbons if reaction is carried to relatively high conversions.

• Research Organization: Mellon Inst., Pittsburgh
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-016424
• OSTI ID: 4782186
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 4 Vol. 66; ISSN 0022-3654
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALKYL RADICALS
ATOMS
CHEMISTRY
CYCLOALKANES
DECOMPOSITION
ETHANE
ETHYL RADICALS
ETHYLENE
EXCITATION
HYDROCARBONS
HYDROGEN
ION RECOMBINATION
LATTICES
LIQUIDS
PENTANE
PRECIPITATION
RADIATION CHEMISTRY
RADIOLYSIS
REGENERATION