1,1-DICHLORO-1-FLUOROETHANE

Chemical Identification
Chemical Identification
CAS # 1717-00-6
Formula

C₂H₃FCl₂

Synonyms

dichlorofluoroethane; dichloromonofluoroethane; Freon 141b

Physical Properties
Physical Properties
Physical description Colorless liquid at ambient conditions.
Boiling point 87.8°F Molecular weight 116.95
Freezing point/melting point -154.3°F Vapor pressure 0.079 MPa at 77°F
Flash point Vapor density
Specific gravity Ionization potential
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.) D238
Sampling group
Sampler/Sampling media 2 Anasorb CMS tubes in series (150/75 mg) [no longer available]
Sampling time*

20 min

Sampling volume (TWA)*

1 L

Sampling flow rate (TWA)*

0.05 L/min

Sampling volume (STEL/Peak/C)*

0.75 L

Sampling flow rate (STEL/Peak/C)*

0.05 L/min

Analytical method instruments GC-FID
Method reference OSHA 113 (fully validated)
Notes

This media is no longer available. OSHA staff please contact the SLTC prior to sampling at (801) 233-4900.

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
Model/Type
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 REL-TWA TLV-TWA PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

NA

Skin notation

NA

Skin notation

NA

Skin notation

NA

Notes:

Not established

Notes:

Not established

Notes:

Not established

Notes:

Not established

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: 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 - 1,1-Dichloro-1-fluoroethane

NIOSH: Pocket Guide to Chemical Hazards - Not listed

Literature References

  • Astier, A. and Paraire, F.: Fatal intoxication with 1,1-dichloro-1-fluoroethane. N. Engl. J. Med. 337(13): 940, 1997.
  • Johansson, J.S.: Fatal intoxication with 1,1-dichloro-1-fluoroethane. N. Engl. J. Med. 338(3): 201-202, 1998.
  • Tong, z., Utell, M.J., Morrow, P.E., Rusch, G.M. and Anders, M.W.: Metabolism of 1,1-dichloro-1-fluoroethane (HCFC-141b) in human volunteers. Drug Metab. Dispos. 26(7): 711-713, 1998.
  • Turnbull, D., Machado, R.J. and Boberg, R.E.: Safety assessment of HCFC-141b: use as a blowing agent for insulation in building construction and refrigeration. Regul. Toxicol. Pharmacol. 19(3): 282-296, 1994.

Last Updated Date : 12/14/2020