PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Bis(2-chloroethylthio)-n-butane, 1,4- 142868-93-7
4.00
3.00
Formula Synonyms
C8.H16.Cl2.S2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
247.2404
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
0.010 0.020 0.32
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
0.10 0.20 3.2
Technical Basis
A review of available sources identified AEGLs for a similar chemical, sulfur mustard (CASRN: 505-60-2). The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1).
• TEEL-1 = AEGL-1 (sulfur mustard, CASRN: 505-60-2)
• TEEL-2 = AEGL-2 (sulfur mustard, CASRN: 505-60-2)
• TEEL-3 = AEGL-3 (sulfur mustard, CASRN: 505-60-2)
This review generated TEEL values that are consistent with Rev. 29A*. Note, Rev. 29A TEEL values were reported only in units of mg/m3.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/1_4-Bis_2-chloroethylthio_butane.
Sulfur mustard (CASRN: 505-60-2) AEGLs: https://www.epa.gov/aegl/sulfur-mustard-results-aegl-program
Chemical description (sulfur mustard, CASRN: 505-60-2): https://pubchem.ncbi.nlm.nih.gov/compound/10461
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.