Chromium(III) hydroxide


Chromium hydroxide is a gelatinous green inorganic compound with the chemical formula Cr3. It is a polymer with an undefined structure and low solubility. It is amphoteric, dissolving in both strong alkalis and strong acids.
It is used as a pigment, as a mordant, and as a catalyst for organic reactions.
It is manufactured by adding a solution of ammonium hydroxide to a solution of chromium salt.