diphosphane

Chemical compound

Chemical compoundtype of chemical entityQ2442174

Also known as P2H4 · diphosphine · biphosphine

Formula: H₄P₂
1
Sources
1.Stated in PubChem“Diphosphine”Retrieved 2016-10-06
View statement on Wikidata ↗
Mass: 65.979 Da
1
Sources
1.Stated in PubChem“Diphosphine”Retrieved 2016-10-06
View statement on Wikidata ↗

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

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.

Overview

Chemistry

Computed by PubChem CID 139283 (NIH) · Public domain

Molecular formula: H4P2
Molecular weight: 65.979 g/mol
IUPAC name: phosphanylphosphane
SMILES: PP
InChIKey: VURFVHCLMJOLKN-UHFFFAOYSA-N
XLogP: -0.2
Topological polar surface area: 0 Å²
H-bond donors / acceptors: 0 / 0
Complexity: 0

Chemistry

All data

21 statements · 57% with external sources · numbers in brackets are citations

Canonical SMILES: PP
1
Sources
1.Stated in PubChem“Diphosphine”Retrieved 2016-10-06
View statement on Wikidata ↗
Members / parts: phosphorus
hydrogen
Subclass of: chemical compound

On other databases

13 identifiers linking diphosphane across the web's reference databases

Data quality

statements

57%

externally sourced

Source last edited June 19, 2026. AIDb refreshes this page daily.

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AIDb. (2026). diphosphane (Q2442174). Retrieved from https://aidb.si/e/diphosphane-Q2442174