| Formula / Notation | H3P |
|---|---|
| CAS Number | 7803-51-2 |
| Molecular Weight | 33.998 |
| Melting Point | -207 °F (EPA, 1998) |
| Boiling Point | -126 °F at 760 mmHg (EPA, 1998) |
| Density | 0.746 at -130 °F (EPA, 1998) - Less dense than water; will float |
| Solubility | Slight (NIOSH, 2024) |
| Appearance | Phosphine appears as a colorless gas with a disagreeable odor of fish or garlic. Boiling point -126 °F; freezing point -209 °F. Very toxic by inhalation at extremely low concentrations. Prolonged... |
| Also Known As | phosphane |
| Category | Inorganic Compounds |
What is Phosphine?
Phosphane is the simplest phosphine, consisting of a single phosphorus atom with three hydrogens attached. It has a role as a fumigant insecticide and a carcinogenic agent. It is a member of phosphanes, a phosphine and a mononuclear parent hydride. It is a conjugate base of a phosphonium. It is a conjugate acid of a phosphanide.
Formula & Notation
IUPAC Name: phosphane
Other Names / Synonyms: phosphane
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | -207 °F (EPA, 1998) |
| Boiling Point | -126 °F at 760 mmHg (EPA, 1998) |
| Density | 0.746 at -130 °F (EPA, 1998) - Less dense than water; will float |
| Molecular Weight | 33.998 |
| Solubility | Slight (NIOSH, 2024) |
| Appearance | Phosphine appears as a colorless gas with a disagreeable odor of fish or garlic. Boiling point -126 °F; freezing point -209 °F. Very toxic by inhalation at extremely low concentrations. Prolonged... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Phosphane is the simplest phosphine, consisting of a single phosphorus atom with three hydrogens attached. It has a role as a fumigant insecticide and a carcinogenic agent. It is a member of phosphanes, a phosphine and a mononuclear parent hydride. It is a conjugate base of a phosphonium. It is a conjugate acid of a phosphanide.
Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.
May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.
The formula or notation for Phosphine is: H3P