# NIOSH Pocket Guide to Chemical Hazards
Sulfur pentafluoride | CAS 5714-22-7
S2F10 | RTECS WS4480000
Synonyms & Trade Names Disulfur decafluoride, Sulfur decafluoride | DOT ID & Guide
Exposure Limits | NIOSH REL: C 0.01 ppm (0.1 mg/m3)
OSHA PEL†: TWA 0.025 ppm (0.25 mg/m3)
IDLH 1 ppm | Conversion 1 ppm = 10.39 mg/m3
Physical Description Colorless liquid or gas (above 84°F) with an odor like sulfur dioxide.
MW: 254.1 | BP: 84°F | FRZ: -134°F | Sol: Insoluble
VP: 561 mmHg | IP: ? | RGasD: 8.77 | Sp.Gr(32°F): 2.08
Fl.P: NA | UEL: NA | LEL: NA |
Noncombustible Liquid Nonflammable Gas
Incompatibilities & Reactivities None reported
Measurement Methods None available
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: No recommendation Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH Up to 0.1 ppm: (APF = 10) Any supplied-air respirator Up to 0.25 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 0.5 ppm: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 1 ppm: (APF = 1000) Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode 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 acid gas canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; in animals: pulmonary edema, hemorrhage
Target Organs Eyes, skin, respiratory system, central nervous system
See also: INTRODUCTION