Diphosphane

Rarity: Uncommon

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Notion

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Science and technology

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What Wikipedia says

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.

Excerpt from the Wikipedia article “Diphosphane”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NEUROtiker, Public domain, via Wikimedia Commons.