SULFUR HEXAFLUORIDE†

Chemical Identification
Chemical Identification
CAS # 2551-62-4
Formula

F₆S

Synonyms

sulfur fluoride [Note: May contain highly toxic sulfur pentafluoride as an impurity.]

Physical Properties
Physical Properties
Physical description Colorless, odorless gas.
Boiling point sublimes Molecular weight 146.1
Freezing point/melting point -83°F (sublimes) Vapor pressure 21.5 atm
Flash point Vapor density 5.11
Specific gravity Ionization potential 19.30 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time*
Sampling volume (TWA)*
Sampling flow rate (TWA)*
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments
Method reference
Notes
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device Infrared spectrophotometer Infrared spectrophotometer
Model/Type Miran 1A & 1B Miran 103
Sampling information
(see manufacturer instructions)
Exposure Limits
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

1000 ppm (6000 mg/m³)

REL-TWA

1000 ppm (6000 mg/m³)

TLV-TWA

1000 ppm [1985]

PEL-TWA

1000 ppm (6000 mg/m³)

PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

N

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

See 29 CFR 1910.1000 Table Z-1.

Notes: Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Not listed Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Sulfur hexafluoride

NIOSH: Pocket Guide to Chemical Hazards - Sulfur hexafluoride

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Sulfur hexafluoride. See annual publication for most recent information.

Last Updated Date : 01/12/2021