Label abbreviations descriptions

1,1,2,2-TETRACHLOROETHANE

Chemical Identification
CAS # 79-34-5
Formula

C₂H₂Cl₄
Synonyms

acetylene tetrachloride; tetrachloroethane; 1,1-dichloro-2,2-dichloroethane

Physical Properties
Physical description Colorless to pale yellow liquid with a sweet odor.
Boiling point 295°F Molecular weight 167.86
Freezing point/melting point -33°F Vapor pressure 5 mmHg
Flash point Vapor density 5.79
Specific gravity 1.595 Ionization potential 11.10 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
Analyte code (IMIS no.) 2340
Sampling group
Sampler/Sampling media solid sorbent tube (petroleum charcoal, 100/50 mg)
Sampling time*
Sampling volume (TWA)*

0.01 - 0.2 L/min
Sampling flow rate (TWA)*

3 L @ 5 ppm - 30 L
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference NIOSH 1019 (partially 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.

Bulk/Wipe Method
Wipe Sampler/Sampling media
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

5 ppm (35 mg/m³)

 REL-TWA

1 ppm (7 mg/m³)

 TLV-TWA

1 ppm [1995]

 PEL-TWA
 

1 ppm (7 mg/m³)
PEL-STEL REL-STEL TLV-STEL PEL-STEL
 

 
PEL-C REL-C TLV-C PEL-C
 

 
Skin notation

Y

 Skin notation

Y

 Skin notation
 

Y

 Skin notation
 

Y
Notes:

See 29 CFR 1910.1000 Table Z-1.

 Notes:

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

 Notes:
 

 

 Notes:
 

 
Health factors:  See NIH-NLM PubChem. IDLH
 

100 ppm [Ca]
Carcinogenic classifications: TLV-A3 Notes:
 

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

 

Additional Resources and Literature References

Last Updated Date : 09/22/2022