PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dichloroethylene, 1,2- | 540-59-0 | 1150 |
3.10
8.00
7.01
15.01
15.02
4.05
11.00
7.00
3.02
4.01
|
|||||||||
| Formula | Synonyms | |||||||||||
| C2H2Cl2 | 1,2-DICHLOROETHYLENE, (MIXED ISOMERS), 1,2-DICHLOROETHYLENE, (TRANS ISOMERS), (E)-1,2-DICHLOROETHENE, (E)-1,2-DICHLOROETHYLENE, 1,2-DICHLORO-, (E)-ETHENE, 1,2-DICHLORO-, (E)-ETHYLENE, 1,2-DICHLOROETHENE, 1,2-DICHLOROETHYLENE, 1,2-TRANS-DICHLOROETHENE, 1,2-TRANS-DICHLOROETHYLENE, ACETYLENE DICHLORIDE, DIOFORM, ETHENE, 1,2-DICHLORO-, (E)-, ETHYLENE, 1,2-DICHLORO-, ETHYLENE, 1,2-DICHLORO-, (E)-, HCC 1130T, NCI-C54591, R 1130T, SYM-DICHLOROETHYLENE, TRANS-1,2-DICHLOROETHENE, TRANS-1,2-DICHLOROETHYLENE, TRANS-ACETYLENE DICHLORIDE, TRANS-DICHLOROETHYLENE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 96.95 | L | -50 | 55 | 25 | ~1.28 No temp | 56000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 140 | 500 | 850 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 560 | 2000 | 3400 |
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for 1,2-dichloroethylene. Instead, analysts identified AEGLs for a similar chemical, cis-1,2-dichloroethylene (CASRN: 156-59-2). The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1). Values in units mg/m3 are reported as published in the technical support document Table 3-2, per handbook guidance (Section 3.4.7.2).
• TEEL-1 = AEGL-1 (cis-1,2-dichloroethylene, CASRN: 156-59-2)
• TEEL-2 = AEGL-2 (cis-1,2-dichloroethylene, CASRN: 156-59-2)
• TEEL-3 = AEGL-3 (cis-1,2-dichloroethylene, CASRN: 156-59-2)
This review generated TEEL ppm values consistent with Rev. 29A. Differences in the reported TEEL value in units of mg/m3 may be due to conversion and rounding of these values, instead of using source values.
• TEEL-1 = AEGL-1 (cis-1,2-dichloroethylene, CASRN: 156-59-2)
• TEEL-2 = AEGL-2 (cis-1,2-dichloroethylene, CASRN: 156-59-2)
• TEEL-3 = AEGL-3 (cis-1,2-dichloroethylene, CASRN: 156-59-2)
This review generated TEEL ppm values consistent with Rev. 29A. Differences in the reported TEEL value in units of mg/m3 may be due to conversion and rounding of these values, instead of using source values.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/1_2-Dichloroethylene.
AEGLs (cis-1,2-dichloroethene, CASRN: 156-59-2) retrieved from: https://www.epa.gov/aegl/cis-12-dichloroethylene-results-aegl-program