Topic summary

Diphosphane

Diphosphane

Names IUPAC name

Diphosphane

Systematic IUPAC name

Diphosphane (substitutive)
Tetrahydridodiphosphorus(P—P) (additive)

Other names

Diphosphine

Identifiers

13445-50-6

3D model (JSmol)

Interactive image

CHEBI:35880

122832

139283

CompTox Dashboard(EPA)

DTXSID40924074

InChI=1S/H4P2/c1-2/h1-2H2
Key: VURFVHCLMJOLKN-UHFFFAOYSA-N

PP

Properties

Chemical formula

P₂H₄Melting point−99 °C (−146 °F; 174 K) Boiling point63.5 °C (146.3 °F; 336.6 K) (Extrapolated, decomposes) Related compounds

Other anions

ammonia
hydrazine
triazane

Related Binary Phosphorus halides

diphosphorus tetrafluoride
diphosphorus tetrachloride

diphosphorus tetraiodide

Related compounds

phosphane
triphosphane
diphosphene
diphosphenes

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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Diphosphane, or diphosphine, is an inorganic compound with the chemical formula P₂H₄. This colourless liquid is one of several binary phosphorus hydrides. It is the impurity that typically causes samples of phosphine to ignite in air.

Wikipedia source