Aluminum phosphide (CAS 20859-73-8) is an inorganic compound typically found as gray to dark-yellow crystalline material. It is highly reactive with moisture and requires strict controls during handling, transportation, and storage.
When exposed to water, steam, or humid air, aluminum phosphide decomposes and releases highly toxic, flammable phosphine gas. The material therefore presents serious poisoning and fire hazards and must be kept dry and handled only in accordance with applicable safety regulations. Its specific gravity is approximately 2.85, making it denser than water.
| Melting point | 2000℃ |
| density | 2.42 |
| solubility | reacts with H2O |
| form | green or yellow cubic crystals |
| color | Green or yellow |
| Water Solubility | reacts with H2O to produce phosphine [MER06] |
| Crystal Structure | Cubic, Sphalerite Structure - Space Group F(-4)3m |
| Stability: | Flammable solid. Contact with acids liberates highly toxic gas (phosphine). Incompatible with acids, moisture, oxidizing agents. |
| CAS DataBase Reference | 20859-73-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Aluminum monophosphide(20859-73-8) |
| EPA Substance Registry System | Aluminum phosphide (20859-73-8) |
Safety Information
| Hazard Codes | F,T+,N |
| Risk Statements | 15/29-28-32-50 |
| Safety Statements | 3/9/14-30-36/37-45-61 |
| RIDADR | 1397 |
| HazardClass | 4.3 |
| PackingGroup | I |
| Hazardous Substances Data | 20859-73-8(Hazardous Substances Data) |
