NIOSH Pocket Guide to Chemical Hazards

Sulfur hexafluoride CAS 2551-62-4
SF6 RTECS WS4900000
Synonyms & Trade Names
Sulfur fluoride [Note: May contain highly toxic sulfur pentafluoride as an impurity.]
DOT ID & Guide
1080 126
Exposure
Limits
NIOSH REL: TWA 1000 ppm (6000 mg/m3)
OSHA PEL: TWA 1000 ppm (6000 mg/m3)
IDLH N.D. See: IDLH INDEX Conversion 1 ppm = 5.98 mg/m3
Physical Description
Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Condenses directly to a solid upon cooling.]
MW: 146.1
BP: Sublimes
FRZ: -83°F (Sublimes)
Sol(77°F): 0.003%
VP: 21.5 atm
IP: 19.30 eV
RGasD: 5.11

Fl.P: NA
UEL: NA
LEL: NA

Nonflammable Gas
Incompatibilities & Reactivities
Disilane
Measurement Method
Gas collection bag; none; Gas chromatography portable; IV [#6602] See: NMAM INDEX
Personal Protection & Sanitation
Skin: Frostbite
Eyes: Frostbite
Wash skin: N.R.
Remove: N.R.
Change: N.R.
Provide: Frostbite
First Aid (See procedures)
Eye: Frostbite
Skin: Frostbite
Breathing: Respiratory support

Respirator Recommendations To be added later
Exposure Routes inhalation
Symptoms asphyxia: increase(d) breathing rate, pulse rate; slight muscle incoordination, emotional upset; fatigue, nausea, vomiting, convulsions; liquid: frostbite
Target Organs respiratory system
See also: INTRODUCTION   See ICSC CARD: 0571