Uranyl hydroxide
Uranyl hydroxide is a hydroxide of uranium with the chemical formula UO(OH) in the monomeric form and (UO)(OH) in the dimeric; both forms may exist in normal aqueous media. Uranyl hydroxide hydrate is precipitated as a colloidal yellowcake from oxidized uranium liquors near neutral pH.
Iron(III) oxide-hydroxide
A number of chemicals are dubbed iron(III) oxide-hydroxide. These chemicals are oxide-hydroxides of iron, and may occur in anhydrous (()) or hydrated (()·"n"HO) forms. The monohydrate (()·HO) might otherwise be described as iron(III) hydroxide (()), and is also known as hydrated iron oxide or yellow iron oxide.