PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chlorobenzylidene malononitrile, o-; (Tear Gas) | 2698-41-1 | 2811 |
14.01
11.01
14.02
4.08
4.05
7.01
8.00
11.00
4.09
4.06
|
|||||||||
| Formula | Synonyms | |||||||||||
| C10.H5.Cl.N2 | O-CHLOROBENZYLIDENE MALONONITRILE, ((2-CHLOROPHENYL)METHYLENE)PROPANEDINITRILE, (O-CHLOROBENZAL)MALONONITRILE, (O-CHLOROBENZYLIDENE)MALONONITRILE, 2-CHLORO BMN, 2-CHLOROBENZALMALONITRILE, 2-CHLOROBENZALMALONONITRILE, 2-CHLOROBENZYLIDENE MALONONITRILE, 2-CHLOROBENZYLIDENEMALONINITRILE, 2-CHLOROBENZYLIDENEMALONONITRILE, 2-CHLOROBMN, BETA,BETA-DICYANO-O-CHLOROSTYRENE, CS, CS (LACRIMATOR), CS GAS, CS(LACRIMITOR), MALONONITRILE, (O-CHLOROBENZYLIDENE)-, NCI-C55118, O-CHLOROBENZYLIDENEMALONIC NITRILE, OCBM, USAF KF-11 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 188.62 | S | 95 | 313 | 0.00003 | 20 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.0050 | 0.083 | 11 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.00065 | 0.011 | 1.4 |
Technical Basis
A review of available sources identified AEGL-3 and AEGL-2 exposure limits and ERPGs for this chemical. The available AEGLs were selected as the TEEL-3 and TEEL-2 due to their priority among the emergency exposure limits (Section 1). Due to insufficient data, an AEGL-1 does not exist for this chemical, therefore the ERPG-1 was selected as the TEEL-1.
• TEEL-1 = ERPG-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = ERPG-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A*.
References
AEGLs: https://www.epa.gov/aegl/tear-gas-results-aegl-program
General information & EPRGs: https://haz-map.com/Agents/355