VINYLIDENE FLUORIDE

Chemical Identification
Chemical Identification
CAS # 75-38-7
Formula

C₂H₂F₂

Synonyms

difluoro-1,1-ethylene; 1,1-difluoroethene; 1,1-difluoroethylene; Halocarbon 1132A; VDF; vinylidene difluoride

Physical Properties
Physical Properties
Physical description Colorless gas with a faint, ethereal odor.
Boiling point -123°F Molecular weight 64.04
Freezing point/melting point -227°F Vapor pressure 35.2 atm
Flash point Vapor density 2.21
Specific gravity 0.617 at 75°F Ionization potential 10.29 eV
Lower explosive limit (LEL) 5.5% Upper explosive limit (UEL) 21.3%
NFPA health rating 1 NFPA fire rating 4
NFPA reactivity rating 2 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
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

1 ppm

TLV-TWA

500 ppm [1996]

PEL-TWA

100 ppm (262 mg/m³)

PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C

5 ppm [15 minutes]

TLV-C PEL-C
Skin notation

NA

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

Not established

Notes:

See 29 CFR 1910.1017, Vinyl chloride.

Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-3, TLV-A4 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-Difluoroethylene

NIOSH: Pocket Guide to Chemical Hazards - Vinylidene fluoride

Literature References

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

Last Updated Date : 01/14/2021