Mercury(II) iodide

Rarity: Uncommon

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

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

Mercury(II) iodide is the inorganic compound with the molecular formula HgI2. The compound has attracted interest because it exhibits thermochromism, i.e. its color changes markedly with temperature. It is typically produced synthetically but can also be found in nature as the extremely rare mineral coccinite.

Excerpt from the Wikipedia article “Mercury(II) iodide”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: W. Oelen, CC BY-SA 3.0, via Wikimedia Commons.