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-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.27 | 3 | 11 |
| 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*.
• 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