PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Dimethylhydrazine, 1,2- 540-73-8 2382
15.01
4.01
11.01
15.02
4.05
7.01
11.00
4.10
4.07
2.02
Formula Synonyms
C2H8N2 1,2-DIMETHYLHYDRAZINE, 1,2-DIMETILHIDRAZINA (DOT SPANISH), DIMÉTHYL-1,2 HYDRAZINE (DOT FRENCH), DIMÉTHYLHYDRAZINE, SYMÉTRIQUE (DOT FRENCH), DIMETHYLHYDRAZINE, SYMMETRICAL, DIMETILHIDRAZINA, SIMÉTRICA (DOT SPANISH), DMH, HYDRAZINE, 1,2-DIMETHYL-, HYDRAZOMETHANE, N,N^-DIMETHYLHYDRAZINE, SDMH, SYM-DIMETHYLHYDRAZINE
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
60.1 fumes -8.9 81 75 26.4 0.8274 @ 20°C
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
0.27 3.0 11
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
0.66 7.4 27
Technical Basis
A review of available sources identified an AEGL-2 and AEGL-3 for this chemical. The AEGLs were selected as the TEEL-2 and TEEL-3 due to their priority among the emergency exposure limits (Section 1). Due to insufficient data, an AEGL was not developed. Therefore, the TEEL-1 value was derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
References
AEGLs (Table 4-1) and chemical information (Table 4-2) retrieved from: (https://www.epa.gov/aegl/12-dimethyl-hydrazine-results-aegl-program
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