Radiolysis of sulfoxides. [Gamma radiation]

Journal Article · · Sov. Radiochem. (Engl. Transl.); (United States)

OSTI ID:6636386

Korobeinikova, V N; Bikbaeva, G G; Murinov, Yu I; Nikitin, Yu E; Kazadov, V P

A study was made on the extractability of petroleum sulfoxides (PSO) and their closest analog tetramethylene sulfoxide (TMSO) upon ..gamma.. irradiation. A two-phase system was used, one phase being either neat PSO or diluted with twice its amount of o-xylene and the other an aqueous solution of UO/sub 2/(NO/sub 3/)/sub 2/ in 0.1 M HNO/sub 3/, with a 1:1 ratio by volume of the aqueous and organic phases. The PSO was also irradiated in the absence of the aqueous phase. Irradiation with doses of 56 X 10/sup 4/ Gy was found to have practically no affect on PSO extractability but it did change the acidity. Radiation-chemical yields for the formation of sulfides and acid-group hydrogen ions as well as decomposition of sulfoxides were determined. The uranyl nitrate solution lowered the decomposition yield of the sulfoxide groups from 7.6 to 2.6 molecules/100 eV whereas the yield for formation of sulfidic sulfur showed a negligible decrease. The radiolysis of TMSO was studied at adsorbed doses of 54 X 10/sup 4/-3.15 X 10/sup 6/ Gy. Gamma radiation changed the colorless sulfoxide to an amber colored form. It also increased the viscosity of the liquid. Dissolution of the irradiated TMSO in hexane caused the precipitation of an oily fraction similar in structure to dimeric TMSO molecules. Radiation-chemical yields of sulfides and acids were determined. Like the PSO, no sulfones were found. Sulfoxide decomposition yields were similar to those of PSO.

• OSTI ID: 6636386
• Journal Information: Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 25:2; ISSN SVRDA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400103 -- Radiometric & Radiochemical Procedures-- (-1987)
400600* -- Radiation Chemistry
ACTINIDE COMPOUNDS
ALKYLATED AROMATICS
AQUEOUS SOLUTIONS
AROMATICS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DISPERSIONS
ELECTROMAGNETIC RADIATION
EXTRACTION
GAMMA RADIATION
HYDROCARBONS
IONIZING RADIATIONS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOLYSIS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SULFOXIDES
URANIUM COMPOUNDS
URANYL COMPOUNDS
URANYL NITRATES
XYLENES