Sulfur Hexafluoride (SF6)
Specifications
- CAS No.: 2551-62-4
- UN No.: 1080
- EINECS No.: 219-854-2
- Molecular Weight: 146.05 g/mol
- Appearance: Colorless, odorless
- Melting Point: -50.8 ℃
- Boiling Point: -63.8 ℃
- Density: 6.0886kg/m³
- Hazard Class (DOT): 2.2
- Label: Non-flammable gas
High-purity sulphur hexafluoride (SF₆) gas supplied from China for electrical insulation and high-voltage systems.
High-purity SF₆ gas (99.9%–99.999%) for electrical insulation, switchgear, GIS systems, and high-voltage applications.
Sulfur hexafluoride is a colorless, odorless, non-toxic, non-flammable stable gas. It is one of the most chemically inert gases known, remaining stable at temperdatures up to approximately 400°F (204°C) in the presence of most materials. As a typically non-polar gas, it is slightly soluble in water and oil but highly soluble in non-polar organic solvents. When distilled water is saturated with Sulfur hexafluoride, the pH remains unchanged. It serves as a new generation of ultra-high voltage insulating dielectric material. High-purity electronic grade Sulfur hexafluoride is an ideal electronic etchant, typically transported as a liquefied compressed gas.
Global Shipping & Export Compliance
SF₆ gas is classified as a non-flammable compressed gas and must be handled under strict hazardous materials regulations.
- Sea freight (FCL / LCL) – standard export method
- Air freight – limited availability (regulatory controlled)
Required Export Documents
SF₆ gas is classified as a non-flammable compressed gas and must be handled under strict hazardous materials regulations.
- Material Safety Data Sheet (MSDS)
- Certificate of Analysis (COA)
- Dangerous Goods Declaration (DGD)
- UN-certified cylinder documentation
- Commercial invoice & packing list
How to Order SF₆ Gas from China
- Send technical requirements (purity, pressure, application)
- Receive quotation (EXW / FOB / CIF options)
- Confirm cylinder specification & compliance
- Review COA, MSDS, and certification documents
- Production, filling, and quality inspection
- Hazardous goods shipping arrangement
- Delivery and final inspection at destination
Common Mistakes When Buying SF₆ Gas
- Choosing suppliers only based on lowest price
- Ignoring cylinder certification and pressure rating
- Not verifying moisture and impurity levels
- Skipping third-party inspection before shipment
- Overlooking export documentation compliance
Packaging
| Gas Cylinder Specifications | Contents | |
| Cylinder Capacity | Cylinder Valve | Weight |
| 40L | CGA 590 / QF-2 | 50kg |
| 47L | CGA 590 / QF-2 | 58kg |
| 50L | CGA 590 / QF-2 | 62kg |
| 500L | CGA 590 / QF-2 | 625kg |
Industrial Grade Sulfur Hexafluoride (SF6) 99.995%
| Purity | ≥ 99.995% |
| Air | ≤ 10ppm |
| Carbon Tetrafluoride (CF4) | ≤ 2ppm |
| Hexafluoroethane (C2F6) | ≤ 20ppm |
| Octafluoropropane (C3F8) | ≤ 5ppm |
| Low Sulfide | Not Detected |
| Moisture | ≤ 1ppm |
| Acidity as HF | ≤ 0.1ppm |
| Hydrolysable Fluoride as HF | ≤ 0.3ppm |
| Mineral Oil | ≤ 1ppm |
Electronic Grade Sulfur Hexafluoride (SF6) 99.999%
| Purity | ≥ 99.999% |
| Oxygen (O2) +Argon Gas (Ar) | ≤ 1ppm |
| Nitrogen (N2) | ≤ 2ppm |
| Methane (CH4) | ≤ 0.1ppm |
| Carbon Monoxide | ≤ 0.5ppm |
| Carbon Tetrafluoride (CF4) | ≤ 0.5ppm |
| Carbon Dioxide (CO2) | ≤ 0.5ppm |
| Moisture | ≤ 3ppm |
| Hydrogen Fluoride (HF) | ≤ 0.1ppm |
| Hydrolysable Fluoride as HF | ≤ 0.8ppm |
Frequently Asked Questions
