# NIOSH Pocket Guide to Chemical Hazards
Sulfuryl fluoride | CAS 2699-79-8
SO2F2 | RTECS WT5075000
Synonyms & Trade Names Sulfur difluoride dioxide, Vikane® | DOT ID & Guide 2191 123
Exposure Limits | NIOSH REL: TWA 5 ppm (20 mg/m3) ST 10 ppm (40 mg/m3)
OSHA PEL†: TWA 5 ppm (20 mg/m3)
IDLH 200 ppm | Conversion 1 ppm = 4.18 mg/m3
Physical Description Colorless, odorless gas. [insecticide/fumigant] [Note: Shipped as a liquefied compressed gas.]
MW: 102.1 | BP: -68°F | FRZ: -212°F | Sol(32°F): 0.2%
VP(70°F): 15.8 atm | IP: 13.04 eV | RGasD: 3.72 |
Fl.P: NA | UEL: NA | LEL: NA |
Nonflammable Gas
Incompatibilities & Reactivities None reported
Measurement Methods NIOSH 6012
Personal Protection & Sanitation Skin: Frostbite Eyes: Frostbite Wash skin: No recommendation Remove: No recommendation Change: No recommendation Provide: Frostbite | First Aid (See procedures) Eye: Frostbite Skin: Frostbite Breathing: Respiratory support
Respirator Recommendations NIOSH/OSHA Up to 50 ppm: (APF = 10) Any supplied-air respirator* Up to 125 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode* Up to 200 ppm: (APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin and/or eye contact (liquid)
Symptoms Conjunctivitis, rhinitis, pharyngitis, paresthesia; liquid: frostbite: in animals: narcosis, tremor, convulsions; pulmonary edema; kidney injury
Target Organs Eyes, skin, respiratory system, central nervous system, kidneys
See also: INTRODUCTION