NIOSH Pocket Guide to Chemical Hazards

Sulfuryl fluoride

CAS 2699-79-8


RTECS WT5075000
Synonyms & Trade Names
Sulfur difluoride dioxide, Vikane®
DOT ID & Guide
2191 123


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 See: 2699798 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

Nonflammable Gas
Incompatibilities & Reactivities
None reported
Measurement Methods
NIOSH 6012
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
Provide: Frostbite wash
First Aid (See procedures)
Eye: Frostbite
Skin: Frostbite
Breathing: Respiratory support

Important additional information about respirator selection
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
(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