Phosphine

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

Other Properties

Combines violently with oxygen and the halogens. Liberates hydrogen and forms phosphide when passed over heated metal; forms phosphonium salts when brought in contact with halogen acids.
Extremely weak base
Density: 1.529 g/L at 0 deg C
Heat of formation: 5.4 kJ/mol at 298.15 K
Standard molar Gibbs energy of formation: 13.5 kj/mol; Standard molar entropy: 210.2 J/mol K; Molar heat capacity at constant pressure: 37.1 J/mol K (all at 298.15 K)
Conversion factor: 1 ppm = 1.39 mg/cu m
Find more information on this substance at: PubChem, PubMed