PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phosphine | 7803-51-2 | 2199 |
15.01
11.01
15.02
4.08
4.05
7.01
8.00
7.00
11.00
4.02
|
|||||||||
| Formula | Synonyms | |||||||||||
| H3P | PHOSPHINE, CELPHOS, DELICIA, DETIA, FOSFINA (DOT SPANISH), GAS-EX-B, HYDROGEN PHOSPHIDE, PHOSPHINE (DOT FRENCH), PHOSPHINE (PH3), PHOSPHORATED HYDROGEN, PHOSPHORETTED HYDROGEN, PHOSPHORUS HYDRIDE, PHOSPHORUS HYDRIDE (PH3), PHOSPHORUS TRIHYDRIDE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 34 | G | -133.8 | -87.75 | 750 | -88 | 1.39 | 16000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.15 | 2.0 | 3.6 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.21 | 2.8 | 5.0 |
Technical Basis
A review of available sources identified exposure limits for this chemical including an AEGL-2, AEGL-3, and TLV-STEL. 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-1 does not exist for this chemical; therefore, the TLV-STEL was selected as the TEEL-1.
• TEEL-1 = TLV-STEL (0.15 ppm)
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-3 and TEEL-2 ppm values consistent with Rev. 29A. Minor differences in the TEEL-3 value reported in units of mg/m3 may be due to rounding. Values in units of mg/m3 are reported as published in the technical support document Table 10-1, per handbook guidance (Section 3.4.7.2). The Rev. 29A and current TEEL-1 source are both listed as TLV-STEL; however, the value was updated to a more conservative value in 2017.
• TEEL-1 = TLV-STEL (0.15 ppm)
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-3 and TEEL-2 ppm values consistent with Rev. 29A. Minor differences in the TEEL-3 value reported in units of mg/m3 may be due to rounding. Values in units of mg/m3 are reported as published in the technical support document Table 10-1, per handbook guidance (Section 3.4.7.2). The Rev. 29A and current TEEL-1 source are both listed as TLV-STEL; however, the value was updated to a more conservative value in 2017.
References
AEGLs. Chemical information retrieved from Table 10-2 of the EPA Technical Support Document. https://www.epa.gov/aegl/phosphine-results-aeglprogram
Exposure limits: https://www.osha.gov/chemicaldata/667