PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Butyl isocyanate, n- | 111-36-4 | 2485 |
14.01
4.01
11.01
14.02
7.01
8.00
11.00
4.07
10.00
9.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| C5H9NO | N-BUTYL ISOCYANATE, 1-ISOCYANATOBUTANE, BUTYL ISOCYANATE, ISOCYANATE DE N-BUTYLE (DOT FRENCH), ISOCYANIC ACID, BUTYL ESTER, N-BUTIL ISOCIANATO (DOT SPANISH) | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 99.13 | L | -75 | 115 | 25 | 0.88 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.05 | 0.083 | 0.25 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.20 | 0.34 | 1.0 |
Technical Basis
A review of available sources identified AEGLs and ERPGs for this chemical. The AEGLs were selected as the TEEL-2 and TEEL-3 due to their usage priority among the emergency exposure limits. An AEGL-1 was not developed; therefore, the ERPG-1 was selected as the TEEL-1(Section 1).
• TEEL-1 = ERPG-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-2 and -3 values consistent with previous Rev. 29A values and a lower TEEL-1 value, due an update in the published ERPG value.
• TEEL-1 = ERPG-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-2 and -3 values consistent with previous Rev. 29A values and a lower TEEL-1 value, due an update in the published ERPG value.
References
ERPG-1 value retrieved from: https://cameochemicals.noaa.gov/chemical/284
https://www.epa.gov/aegl/n-butyl-isocyanate-results-aegl-program