PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dichloropropene, 1,2-; (including cis- isomer, 6923-20-2) | 563-54-2 |
11.01
15.01
7.01
4.05
15.02
4.09
4.10
3.11
|
||||||||||
| Formula | Synonyms | |||||||||||
| C3H4Cl2 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 110.97 | L | 75 | 90.8 | 20 | 1.1818 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 10 | 66 | 400 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.2 | 15 | 88 |
Technical Basis
A review of available sources identified multiple LD50 acute toxicity data for various routes and species, and exposure limits (OEL-STEL, OEL-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 most preferred species and route data, a rat oral LD50, was selected as the TEEL-3 basis. The OEL-STEL (Denmark) was selected as the TEEL-1. TEEL-2 value was derived according to Table 3.5.
• PAC-1 = TEEL-1 = OEL-STEL (Denmark, 10 mg/m3)
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat oral LD50 (2 g/kg => 2000 mg/kg)
This review generated a PAC-1 value inconsistent with Rev. 29A, and PAC-2 and PAC-3 values consistent with Rev. 29A. The Rev. 29A TEEL-1 was derived from the TEEL-2 (Table 3.5), while the current basis is an exposure limit, OEL-STEL (Denmark). The Rev. 29A and current TEEL-2 and TEEL-3 methodology and values remain consistent.
• PAC-1 = TEEL-1 = OEL-STEL (Denmark, 10 mg/m3)
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat oral LD50 (2 g/kg => 2000 mg/kg)
This review generated a PAC-1 value inconsistent with Rev. 29A, and PAC-2 and PAC-3 values consistent with Rev. 29A. The Rev. 29A TEEL-1 was derived from the TEEL-2 (Table 3.5), while the current basis is an exposure limit, OEL-STEL (Denmark). The Rev. 29A and current TEEL-2 and TEEL-3 methodology and values remain consistent.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/1_2-Dichloropropene.
OEL-STEL: https://ilv.ifa.dguv.de/limitvalues/19872
Rat oral LD50: Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed. Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996., p. 1125. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/1_2-Dichloropropene.