PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Bis(2-chloroethylthio)methane 63869-13-6
4.00
3.00
Formula Synonyms
C5.H10.Cl2.S2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
205.16
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
0.084 0.17 2.7
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 ppm values that are consistent with Rev. 29A. Minor differences in the reported TEEL-1 value in units of mg/m3 may be due to rounding. Note, Rev. 29A TEEL values were reported only in units of mg/m3.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Bis_2-chloroethylthio_methane.
Sulfur mustard (CASRN: 505-60-2) AEGLs: https://www.epa.gov/aegl/sulfur-mustard-results-aegl-program
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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.