PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Furan | 110-00-9 | 2389 |
17.00
13.00
6.00
15.01
4.01
11.01
15.02
4.08
4.05
7.01
|
|||||||||
| Formula | Synonyms | |||||||||||
| C4H4O | FURAN, 1,4-EPOXY-1,3-BUTADIENE, AXOLE, DIVINYLENE OXIDE, FURANNE (DOT FRENCH), FURANO (DOT SPANISH), FURFURAN, FURFURANE, NCI-C56202, OXACYCLOPENTADIENE, OXOLE, RCRA WASTE NUMBER U124, TETROLE, UN 2389 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 68.07 | L | -85.61 | 31.5 | 750 | 31 | 0.9514 @ 20°C | 23000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.040 | 6.8 | 19 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.11 | 19 | 53 |
Technical Basis
A review of available sources identified a MAK-TWA, MAK-STEL, 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). The MAK-STEL was selected as the TEEL-1.
• TEEL-1 = MAK-STEL
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-1 values inconsistent with Rev. 29A. In Rev. 29A the TEEL-1 was derived from the AEGL-2; however, this review used a preferred exposure limit, the MAK-STEL, as the TEEL-1 basis. The TEEL-2 and TEEL-3 methodology and values remain consistent.
• TEEL-1 = MAK-STEL
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-1 values inconsistent with Rev. 29A. In Rev. 29A the TEEL-1 was derived from the AEGL-2; however, this review used a preferred exposure limit, the MAK-STEL, as the TEEL-1 basis. The TEEL-2 and TEEL-3 methodology and values remain consistent.
References
AEGLs (Table 3-1) and chemical information (Table 3-2) retrieved from: https://www.epa.gov/aegl/furan-results-aegl-program
MAK-STEL. Retrieved from: https://ilv.ifa.dguv.de/limitvalues/29757