VINYLIDENE CHLORIDE

Chemical Identification
CAS # 75-35-4
Formula

C₂H₂Cl₂

Synonyms

1,1-DCE; 1,1-eichloroethene; 1,1-eichloroethylene; VDC; vinylidene chloride monomer; vinylidene chloride, inhibited; vinylidene dichloride

Physical Properties
Physical description Colorless liquid or gas (above 89°F) with a mild, sweet, chloroform-like odor.
Boiling point 89.1°F Molecular weight 96.94
Freezing point/melting point -188.5°F Vapor pressure 500 mmHg
Flash point 14°F Vapor density 3.25
Specific gravity 1.21 Ionization potential 10.00 eV
Lower explosive limit (LEL) 6.5% Upper explosive limit (UEL) 15.5%
NFPA health rating 4 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
Analyte code (IMIS no.) 2583
Sampling group
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*
Sampling volume (TWA)*

3 L

Sampling flow rate (TWA)*

0.2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference OSHA 19 (fully validated)
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
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
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

5 ppm [1992]

PEL-TWA

1 ppm (4 mg/m³)

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

NA

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

Not established

Notes:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION (LOQ 0.4 ppm). See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-3, NIOSH-Ca, TLV-A4, EPA-1 Notes:

Ca

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

--/500 ppm/1000 ppm

Last Updated Date : 12/19/2018