Chromium(II) sulfate

Chromium(II) sulfate is an inorganic compound with the chemical formula CrSO4.

Solutions of chromium(II) are easily oxidized by air to Cr(III) species.

Solutions of Cr(II) are used as specialized reducing agents of value in organic synthesis.

[1] In aqueous solutions chromium(II) sulfate forms metal aquo complexes, presumably with six water ligands.

In all of these compounds, the Cr(II) centre adopts octahedral coordination geometry, being coordinated to six oxygen centers provided by a combination of water and sulfate ligands.