Zeise's salt

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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Notion

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Science and technology

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What Wikipedia says

Zeise's salt, potassium trichloro(ethylene)platinate(II) hydrate, is the chemical compound with the formula K[PtCl3(C2H4)]·H2O. The anion of this air-stable, yellow, coordination complex contains a ethylene as a ligand bound to the Pt.

Excerpt from the Wikipedia article “Zeise's salt”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Ben Mills, Public domain, via Wikimedia Commons.