Mercury(II) oxide

Rarity: Uncommon

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

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Notion

Domain

Science and technology

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What Wikipedia says

Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, is the inorganic compound with the formula HgO. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure. The mineral form montroydite is very rarely found.

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

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