PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hydrogen fluoride; (Hydrofluoric acid) | 7664-39-3 | 1052 |
6.00
14.01
4.01
11.01
14.02
4.08
4.05
7.01
7.00
11.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| FH | HYDROFLUORIC ACID, HYDROFLUORIC ACID, SOLUTION, HYDROGEN FLUORIDE, ANHYDROUS, ACIDE FLUORHYDRIQUE (DOT FRENCH), ACIDO FLUORHÍDRICO (DOT SPANISH), ALSURF 45, ANHYDROUS HYDROFLUORIC ACID, ANTISAL 2B, FLUORHYDRIC ACID, FLUORIC ACID, FLUORINE HYDRIDE (FH), FLUORINE MONOHYDRIDE, HYDROFLUORIC ACID (CONC. 50% OR GREATER), HYDROFLUORIC ACID GAS, HYDROGEN FLUORIDE, HYDROGEN FLUORIDE (HF), HYDROGEN MONOFLUORIDE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 20.01 | G | -83.36 | 20 | 750 | 19.2 | 0.818 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.0 | 24 | 44 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.82 | 20 | 36 |
Technical Basis
A review of available sources identified AEGLs for this chemical. The AEGLs were selected due to their priority among Protective Action Criteria (Section 1). Values in units mg/m3 are reported as published in the technical support Table 3-1, per guidance (Section 3.4.7.2).
• PAC-1 = AEGL-1
• PAC-2 = AEGL-2
• PAC-3 = AEGL-3
This review generated PAC ppm values consistent with Rev. 29A. Differences in the reported PAC-1 value in units mg/m3 may be due to conversion and rounding of these values, instead of use of source values.
• PAC-1 = AEGL-1
• PAC-2 = AEGL-2
• PAC-3 = AEGL-3
This review generated PAC ppm values consistent with Rev. 29A. Differences in the reported PAC-1 value in units mg/m3 may be due to conversion and rounding of these values, instead of use of source values.
References
AEGLs (Table 3-1) and chemical information (Table 3-2) retrieved from: https://www.epa.gov/aegl/hydrogen-fluoride-results-aegl-program