Phosphine

CAS RN: 7803-51-2
UN/NA: 2199

Other Hazardous Reactions

During vacuum transfer of the supposedly pure gas, air leaked into the cold-trap system and caused an explosion.
Pure phosphine is rendered pyrophoric by traces of dinitrogen trioxide, nitrous acid, or similar oxidant.
Reacts with copper, silver, gold, & their salts.
Find more information on this substance at: PubChem, PubMed