Biological effects of spark-decomposed SF/sub 6/
Conference
·
OSTI ID:7070975
Sulfur hexafluoride (SF/sub 6/) issued as an insulating gas for electrical applications (gas-insulated substations, switchgear, etc.). The gas is inert chemically and innocuous biologically. Electrical discharges (arcs, sparks, corona) in SF/sub 6/ can produce chemical decomposition of the gas. Analysis by mass spectroscopy in our laboratory has found that discharge of electrical sparks in SF/sub 6/ can produce a wide variety of decomposition products depending upon electrode composition, moisture content, presence of oxygen, etc. The compounds SOF/sub 2/, SOF/sub 4/, SO/sub 2/F/sub 2/, SiF/sub 4/, SO/sub 2/, HF, SF/sub 4/ and S/sub 2/F/sub 10/ have been identified and quantified in spark-decomposed SF/sub 6/. Toxicity information on most of these chemicals is sparse, but available data suggest some may have a strong biological toxicity. Analysis of the ability of these individual chemicals to cause cell lethality in cultured cell assays has allowed a toxicity ranking for these compounds and an understanding of which compounds contribute most to cellular toxicity in the cell culture assays. 29 refs., 1 fig., 3 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 7070975
- Report Number(s):
- CONF-881061-6; ON: DE88012491
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DIAGRAMS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
EQUIPMENT
EXPERIMENTAL DATA
FLOWSHEETS
FLUORIDES
FLUORINE COMPOUNDS
GAS-INSULATED SUBSTATIONS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
NUMERICAL DATA
POWER SUBSTATIONS
SULFUR COMPOUNDS
SULFUR FLUORIDES
TOXICITY
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DIAGRAMS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
EQUIPMENT
EXPERIMENTAL DATA
FLOWSHEETS
FLUORIDES
FLUORINE COMPOUNDS
GAS-INSULATED SUBSTATIONS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
NUMERICAL DATA
POWER SUBSTATIONS
SULFUR COMPOUNDS
SULFUR FLUORIDES
TOXICITY