Portrait of Karl Ernst Claus

Adapted from ⁠an image (public domain), via Wikimedia Commons.

1796–1864

Karl Ernst Claus

Discovered ruthenium in 1844.

Element

44RuRuthenium
1844

Platinum ore from the Ural Mountains was thought to hold new metals, but early claims fell apart. In 1844 Karl Ernst Claus, at Kazan University, isolated one and proved it was real, keeping the name ruthenium, after Ruthenia, the Latin name for Russia.

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