PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Methyl isothiocyanate; (Isothiocyanatomethane) | 556-61-6 | 2477 |
14.01
14.02
7.01
11.00
11.01
4.05
7.00
4.08
4.01
4.07
|
|||||||||
| Formula | Synonyms | |||||||||||
| C2H3NS | METHYL ISOTHIOCYANATE, ISOTHIOCYANATE DE MÉTHYLE (DOT FRENCH), ISOTHIOCYANATOMETHANE, ISOTHIOCYANIC ACID, METHYL ESTER, ISOTIOCIANATO DE METILO (DOT SPANISH), METHANE, ISOTHIOCYANATO-, METHYL ISOTHIOCYANIDE, METHYL MUSTARD, METHYL MUSTARD OIL, METHYL THIOISOCYANATE, MIC, MIT, MIT (PESTICIDE), MITC, MORTON EP-161E, TRAPEX, TRAPEXIDE, TROPEX, VORLEX, VORTEX, WN 12 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 73.12 | S/L | 36 | 119 | 19 | 20 | 1.069 @ 37°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.27 | 17 | 50 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.81 | 51 | 150 |
Technical Basis
A review of available data sources identified the following: AEGL exposure data1. The 60-minute AEGL exposure limits were selected, in accordance with the TEEL Handbook2.
• TEEL-1 = AEGL-1 (60-minute)
• TEEL-2 = AEGL-2 (60-minute)
• TEEL-3 = AEGL-3 (60-minute)
The review generated TEEL values consistent with those found in Rev. 29A.
• TEEL-1 = AEGL-1 (60-minute)
• TEEL-2 = AEGL-2 (60-minute)
• TEEL-3 = AEGL-3 (60-minute)
The review generated TEEL values consistent with those found in Rev. 29A.
References
https://www.epa.gov/sites/default/files/2014-11/documents/aegl_vol_15_methyl_isothiocyanate1.pdf
Section 2.6.