Sulfur tetrafluoride
Synonyms & Trade Names
TetrafluorosulfuranePhysical Description
Colorless gas with an odor like sulfur dioxide. [Note: Shipped as a liquefied compressed gas.]Molecular Weight
108.1Boiling Point
-41°FFreezing Point
-185°FSolubility
ReactsVapor Pressure
(70°F): 10.5 atmIonization Potential
12.63 eVFlash Point
NAUpper Exposive Limit
NALower Explosive Limit
NARelative Gas Density
3.78
Nonflammable Gas
Incompatibilities & Reactivities
Moisture, concentrated sulfuric acid, dioxygen difluoride [Note: Readily hydrolyzed by moisture, forming hydrofluoric acid & thionyl fluoride.]Exposure Routes
inhalation, skin and/or eye contactSymptoms
irritation eyes, skin, mucous membrane; eye, skin burns (from SF4 releasing hydrofluoric acid on exposure to moisture); liquid: frostbite; In Animals: dyspnea (breathing difficulty), lassitude (weakness, exhaustion), rhinorrhea (discharge of thin nasal mucus)Target Organs
Eyes, skin, respiratory systemPersonal Protection/Sanitation
(See protection codes)Skin:Frostbite
Eyes:Frostbite
Wash skin:No recommendation
Remove:No recommendation
Change:No recommendation
Provide:Frostbite wash
Respirator Recommendations
Not available.
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division