PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hexachlorobutadiene | 87-68-3 | 2279 |
15.01
4.01
11.01
15.02
4.05
7.01
8.00
7.00
11.00
4.09
|
|||||||||
| Formula | Synonyms | |||||||||||
| C4Cl6 | HEXACHLOROBUTADIENE, 1,1,2,3,4,4-HEXACHLORO-1,3-BUTADIENE, 1,3-BUTADIENE, 1,1,2,3,4,4-HEXACHLORO-, 1,3-HEXACHLOROBUTADIENE, BUTADIENE, HEXACHLORO-, C 46, DOLEN-PUR, GP-40-66:120, HCB, HCBD, HEXACHLORBUTADIENE, HEXACHLORO-1,3-BUTADIENE, HEXACHLOROBUTADIÈNE (DOT FRENCH), HEXACLOROBUTADIENO (DOT SPANISH), PERCHLORO-1,3-BUTADIENE, PERCHLOROBUTADIENE, RCRA WASTE NUMBER U128, UN 2279 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 260.76 | L | -21 | 215 | 22 | 1.556 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.0 | 3.0 | 10 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 11 | 32 | 110 |
Technical Basis
A review of available sources identified acute animal toxicity studies (LD50, LC50) for various species and routes, and exposure limits (ERPGs, TWAs). Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. The ERPGs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1).
• TEEL-1 = ERPG-1
• TEEL-2 = ERPG-2
• TEEL-3 = ERPG-3
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = ERPG-1
• TEEL-2 = ERPG-2
• TEEL-3 = ERPG-3
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/6901
ERPGs and TWAs: https://www.osha.gov/chemicaldata/725