- Sulfur fluoride
A colorless odorless gas.
In electrical circuit interrupters, in electronic ultra-high frequency piping.
Registry Numbers and Inventories.
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
9443.51 (0 C)
Vapor density (air=1)
1.07 g/cm3 (50 C)
Solubility in water
0.037204 cp (627 C)
Partition coefficient, pKow
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate protective gloves, clothing and goggles.
Wear positive pressure self-contained breathing apparatus (SCBA).
Attempt to stop leak if without undue personnel hazard.
Disilane explodes violently in contact with sulfur hexafluoride. Decomposition occurs at high temp in presence of oxygen with release of irritating decomposition products. Disilane explodes on contact with carbon tetrachloride or sulfur hexafluoride.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
May burn but does not ignite readily.
Containers may explode when heated. Ruptured cylinders may rocket.
Fire may produce irritating, corrosive and/or toxic gases.
TLV: 1000 ppm; 5970 mg/m3 (ACGIH 1997). OSHA PEL: TWA 1000 ppm (6000 mg/m3) NIOSH REL: TWA 1000 ppm (6000 mg/m3)
Altered hearing, mild excitation, and a peripheral tingling sensation may develop. If displacement of oxygen causes hypoxemia, incoordination, mood disturbances, confusion, headache, or coma could develop. No data were available to assess the teratogenic potential of this agent or its possible effects during pregnancy or lactation.
Unlikely to occur.
Air hunger and cyanosis may be noted.
Direct contact with the liquified material or escaping compressed gas can cause frostbite injury.
Seek medical assistance.
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Remove and isolate contaminated clothing and shoes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water.
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.
Std. Transport #