PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Dibromopropane, 1,3- 109-64-8
15.01
11.01
15.02
4.05
7.01
8.00
4.07
3.08
7.11
3.09
Formula Synonyms
C3H6Br2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
201.91 L -34.5 166.5 1.36 25 1.977
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
1.6 17 100
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.19 2.1 12
Technical Basis
A review of available sources identified mouse and rabbit acute toxicity data (LD50). 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 toxicity data, a mouse intraperitoneal LD50, was selected as the TEEL-3 basis. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Mouse intraperitoneal LD50 (473 mg/kg)
This review generated a PAC-3 value consistent with Rev. 29A and inconsistent PAC-2 and PAC-1 values. The Rev. 29A and current TEEL-3 source and methodology are consistent. The Rev. 29A TEEL-2 basis was a rat TDLo not identified during this review. The Rev. 29A and current TEEL-1 use the same methodology, with differences due to the change in TEEL-2.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/8001
Rat intraperitoneal LD50. Journal fuer Praktische Chemie., 320(133), 1978. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/8001
Search Again
PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.