Chromium(II) sulfate

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

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

In collections

Nobody has pulled it yet.

What Wikipedia says

Chromium(II) sulfate is an inorganic compound with the chemical formula CrSO4. Several hydrated salts are known (CrSO4·nH2O). The pentahydrate (CrSO4·5H2O) is a blue solid that dissolves readily in water. Solutions of chromium(II) are easily oxidized by air to Cr(III) species.

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

Image: GingeurBread, CC BY-SA 4.0, via Wikimedia Commons.