Dichloroacetylene
Agent Name
Dichloroacetylene
CAS Number
7572-29-4
Formula
C2-Cl2
Major Category
Other Classes
Synonyms
DCA, Dichloroethyne [Note: DCA is a possible decomposition product of trichloroethylene or trichloroethane.] [NIOSH]
Category
Halogenated Aliphatics, Unsaturated
Description
Volatile oil with a disagreeable, sweetish odor. [Note: A gas above 90 degrees F. DCA is not produced commercially.] [NIOSH]
Sources/Uses
A by-product of vinylidene chloride production and trichloroethylene thermal decomposition; Not produced commercially; [ACGIH]
Comments
Dichloroacetylene is formed from the thermal decomposition of trichloroethylene or tetrachloroethane. Dichloroacetylene poisoning causes injury to the kidneys and nervous system. Affected patients may have trigeminal nerve paralysis and reactivation of facial herpes. Most cases were reported when trichloroethylene was used as an anesthetic. [ACGIH]
Restricted
Transport forbidden; [HMT]
Biomedical References
Exposure Assessment
Skin Designation (ACGIH)
Insufficient data
Ceiling (ACGIH)
0.1 ppm
Vapor Pressure
570 mm Hg
Lethal Concentration
LC50 (mouse) = 23 ppm/4h
Explanatory Notes
VP from HSDB;
Adverse Effects
Neurotoxin
Sensorimotor
Nephrotoxin
Yes
IARC Carcinogen
Not classifiable
ACGIH Carcinogen
Confirmed Animal
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.