About Sulfur Hexafluoride
Sulfur Hexafluoride (SF6) is a synthetic, colorless, odorless, non-flammable gas.
SF6’s primary use is in the electrical industry as a gaseous dielectric medium for various voltage circuit breakers, switchgear, and other electrical equipment, often replacing oil-filled circuit breakers (OCBs) that can contain harmful PCBs. SF6 gas under pressure is used as an insulator in gas insulated switchgear (GIS) because it has a much higher dielectric strength than air or dry nitrogen. This property makes it possible to reduce the size of the electrical gear significantly.
Sulfur Hexafluoride Safety Requirements:
99.99% (4N) Technical Grade: For Gas Insulated Switchgear (GIS) and other High and Mid-Voltage Electrical Applications
Industrial Grade Maximum Impurities
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Sulfur Hexafluoride
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99.99%
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Oxygen (O₂)
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<75 ppmv
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Nitrogen (N₂)
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<200 ppmv
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Water (H₂O)
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<5 ppmv
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Hydrolyzable fluoride expressed as HF
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<0.3 ppmv
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Carbon Tetrafluoride (CF₄)
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<75 ppmv
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Toxicity
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No
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99.999% (5N) Ultra High Purity Grade SF6: For Semiconductor and Advanced Manufacturing Applications
Ultra High Purity Grade SF6 Maximum Impurities
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Sulfur Hexafluoride
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99.999%
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Oxygen (O₂)
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< 2 ppm
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Water (H₂O)
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< 2 ppm
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Carbon Tetrafluoride (CF₄)
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< 2 ppm
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Sulfur Hexafluoride Physical Constants
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|
Chemical formula
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SF₆
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Molecular Weight
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146.065
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Specific volume @ +70°F (+21.1°C)
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2.648 ft³/lb., 0.165 m³/kg
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Critical pressure
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545.34. psia, 37.59 bar
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Critical temperature
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113.97°F, 45.54°C
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Specific gravity @ 70°F, 1 atm (Air=1)
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5.043
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Hazardous Class
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2.2
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Vapor Pressure
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320 psig
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Boiling Point
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-82.7°F, -63.72°C
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Variety of Sizes in stock and ready for shipment:
5LB, 11LB, 18LB, 20LB, 25LB, 27.5LB, 35LB, 38LB, 45LB, 50LB, 57LB, 70LB, 90LB, 115LB and 1150LB. Custom Fill available upon request.
5KG, 10KG, 12.5KG, 40KG and 50KG. Custom Fill available upon request.
Concorde Specialty Gases
36 Eaton Road
Eatontown, NJ 07724
Tel: 732-544-9899
We Provide:
SF6 Gas
Recycled SF6 Gas
SF6 Gas Blends
CF4 Gas
Xenon Gas
Krypton Gas
Helium Gas
Dry Air
Custom Gas Blends
International Shipping
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Concorde Gas Customer Pledge:
- 100% Product Quality Warranty - Random testing by leading independent laboratories to ensure consistent product quality.
- 100% Product Replacement Guarantee - If any Concorde Gas product fails to meet or exceed our published quality standards, we will provide a full replacement, including all shipping expenses.
- Turnaround in One Business Day or Less - from order to shipment in the Continental US!
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- Recycling Programs - designed to save you money and do our part for the environment!
Our Services:
- Cylinder Purchase, Rental, Trade-ins
- Customer Cylinder Refills
- Same Day Shipping
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