1. OSHA Occupational Chemical Database
  2. 1,2-DICHLOROETHYLENE, MIXED ISOMERS (ACETYLENE DICHLORIDE)
Label abbreviations descriptions

1,2-DICHLOROETHYLENE, MIXED ISOMERS (ACETYLENE DICHLORIDE)†

Chemical Identification
Chemical Identification
CAS # 540-59-0
Formula

C₂H₂Cl₂
Synonyms

acetylene dichloride; cis-acetylene dichloride; trans-acetylene dichloride; sym-dichloroethylene
Physical Properties
Physical Properties
Physical description Colorless liquid (usually a mixture of the cis & trans isomers) with a slightly acrid, chloroform-like odor.
Boiling point 118-140°F Molecular weight 97.0
Freezing point/melting point -57 to -115°F Vapor pressure 180-265 mmHg
Flash point 36-39°F Vapor density 3.34
Specific gravity 1.27 Ionization potential 9.65 eV
Lower explosive limit (LEL) 5.6% Upper explosive limit (UEL) 12.8%
NFPA health rating 1 NFPA fire rating 3
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.) 0870
Sampling group
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*
Sampling volume (TWA)*

3 L
Sampling flow rate (TWA)*

0.01-0.2 L/min
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference NIOSH 1003 (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.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device Detector tube Detector tube Detector tube
Model/Type Matheson-Kitagawa 8014-145S Matheson-Kitagawa 8014-180S Gastec 139
Sampling information
(see manufacturer instructions) 		follow mfr instructions; approx 1-400 ppm range follow mfr instructions; approx 2-1000 ppm range 0.5-2 strokes; 1-250 ppm range; 16.4% for 10-20 ppm, 8.2% for 20-100 ppm
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

200 ppm (790 mg/m³)

 REL-TWA

200 ppm (790 mg/m³)

 TLV-TWA

200 ppm [1990]

 PEL-TWA

200 ppm (790 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
 

1000 ppm
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 - 1,2-Dichloroethylene, (mixed isomers)

NIOSH: Pocket Guide to Chemical Hazards - 1,2-Dichloroethylene

Literature References

 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 1,2-Dichloroethylene, all isomers. See annual publication for most recent information.
  • (light-headedness, dizziness, euphoria, nausea, vomiting, weakness, tremor, epigastric cramps; dermatitis)
  • Krentz, D.M., Mailey, L.A.: Dichloroethylene, 1,2-. In: Encyclopedia of Toxicology, Vol. 1, Wexler, P., ed. New York: Academic Press, pp. 465-467, 1998.
  • (dermatitis/ transient renal effects)
  • Sitting, M.: 1,2-Dichloroethylene. Handbook of Toxic and Hazardous Chemical and Carcinogens, 3rd Ed., Vol. 1, pp. 570-573, 1991.
  • Occupational Health Guidelines for Chemical Hazards. US Department of Health and Human Services (DHHS), National Institute for Occupational Safety and Health (NIOSH) Publication No. 81-123, (1981, January). Provides a table of contents of guidelines for many hazardous chemicals. The files provide technical chemical information, including chemical and physical properties, health effects, exposure limits, and recommendations for medical monitoring, personal protective equipment (PPE), and control procedures.

Last Updated Date : 12/14/2020