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Molecular Formula: SF6
Molecular Weight: 146.05
Typical Properties: It is a liquid under normal temperature and normal pressure. It has no color, no smell, no toxic and no corrosion. Melting point is -50℃. Sublimation point and boiling point is -63.8℃. Gas density is 6.16g/L (20℃, 0.1MPa). Its density at melting point is 2.51g/cm3. It processes good insulation and high arcing ability.
Item Index：
|
Item
|
National Standard |
Enterprise Standard |
|
Sulfur Hexafluoride(SF6 m/m) /10 -2 ≥ |
99.90 |
99.99 |
|
Air (m/m)/10 -2 ≤ |
0.04 |
0.005 |
|
Carbon Tetrafluoride (CF4 m/m)/10 -2 ≤ |
0.04 |
0.004 |
|
Moisture (H2O m/m)/10 -6 ≤ |
5.0 |
3.0 |
|
Acidity (in HF) (HF m/m)/10 -6 ≤ |
0.2 |
0.15 |
|
Hydrolyzable Fluoride (in HF)(HF m/m)/10 -6 ≤ |
1.0 |
0.8 |
|
Mineral Oil(m/m)/10 -6 ≤ |
4 |
3.0 |
|
Bioexperiment |
Non toxic |
Non toxic |
Applications:
It is a fine inert and insulating gas widely used in high-voltage electronic equipment, underground cables and gaseous insulators such as electronic equipment, radar, particle accelerators, transformer and lightning arrester etc. It is also used in refrigerant and etchings for tracing device, medical and semiconductor. It is the third generation of insulating and cooling medium used internationally and most widely in power industry after air and oil.
Storage:
Please store in dry, cool and ventilated place.
Transportation:
Attached with GB19-73 sign, labels on packages of dangerous goods, for long distance transportations. The filling coefficient should be less than 1.33kg/L.
Package:
It should be filled in clean, dry and seamless high-pressure gas cylinders. The commonly used cylinder volumes are 40L, 12.5L, 10L, 8L and 4L. The volumes and types of containers can both be adjusted according to customer’s requirements. (Normally, when the nominal pressure for gas cylinder is 15Mpa, the filling coefficient is less than 1.37kg/L.)