HP Gas
Clean Gas Sulfer Hexafluoride
Properties and Classification
| Appearance: Colorless and odorless gas or liquid | UN Number: 1080 |
| CAS Number: 2551-62-4 | Liquefied gas |
* Refer to MSDS for detailed information on the properties and safety of the product.
Specification
| Purity | wt% | Min. 99.999 |
|---|---|---|
| Water | wtppm | Max. 3.0 |
| Acids | wtppm | Max. 0.4 |
| CH4 | wtppm | Max. 0.3 |
| CO2 | wtppm | Max. 0.3 |
| Air | wtppm | Max. 6.0 |
| Particle | Not smaller than 0.1 micrometer | Max. 60/C.F. |
Cylinder
| Item | 10L cylinder | 47L cylinder | |
|---|---|---|---|
| Size | Inside diameter | 140mm | 232mm |
| Inside diameter | 850mm | 1370mm | |
| Height (to the neck portion)) * | 1000mm | 1520mm | |
| Loading weight | 5kg | 30kg | |
| Material | Manganese steel (Clean-S-treated) | ||
* Estimated values for when a standard valve is mounted on a standard cylinder. The accuracy of these values is not guaranteed.
Valve
| Nozzle size | Ø22 mm X 14 right-hand threads |
| Material | SUS316L |
Physical & Chemical Properties
| Item | Unit | Data |
|---|---|---|
| Chemical formula | SF6 | |
| Molecular weight | 146.06 | |
| Boiling point | °C | -63.89 |
| Sublimation point | °C | -63.7 |
| °F | -82.7 | |
| Melting point (223.9kPa) | °C | -50.8 |
| Liquid density | kg/L | 1.540 |
| Gas density (0°C, saturated liquid) | g/L | – |
| Critical temperature | °C | 45.6 |
| Critical pressure | MPa | 3.77 |
| kg/cm2 | 36.7 | |
| Flammability | Toxicity | |
| Toxicity | Not applicable | |
| Latent heat of vaporization (0°C 1013MPa) | kJ/kg | 117 |
| aximum permissible concentration (ACGIH) | ppm | 1000 |
| Explosive limit (in air, 35°C, 101.3 kPa) | – |
Temperature – Vapor Pressure Curve
