Upper limit for the methane-oxygen initiation reaction in the presence of iodine-131 behind reflected shock waves

Thesis/Dissertation · Thu Jan 01 04:00:00 EST 1981

OSTI ID:5370886

Pardini, S P

A one-inch diameter single-pulse shock tube was used to study the rate of methyl iodide formation from 815 to 1151K via the reaction of CH/sub 4/ with I, and the observed rate constant is recorded. Tracer quantities of /sup 131/I were used to follow the course of the reaction. At 1097K in a stoichiometric methane-oxygen reaction mixture with small amounts of iodine present, the methane-oxygen initiation reaction was not found to occur, thus putting an upper limit on the rate constant. Mass-spectral analysis of the reaction products from the latter experiment indicated that formaldehyde was formed; at 1097K oxygen was able to successfully compete with iodine for methyl radicals. The reaction of methyl radicals and molecular oxygen was noted, and the rate constant is recorded.

• Research Organization: Iowa State Univ. of Science and Technology, Ames (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5370886
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DAYS LIVING RADIOISOTOPES
ELEMENTS
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENS
HYDROCARBONS
INTERMEDIATE MASS NUCLEI
IODINATED ALIPHATIC HYDROCARBONS
IODINE
IODINE 131
IODINE ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
METHANE
METHYL IODIDE
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
OXYGEN
RADIOISOTOPES
SHOCK TUBES
SYNTHESIS
TEMPERATURE EFFECTS
TRACER TECHNIQUES