In chemistry, plumbite is the PbO22- oxyanion or hydrated forms, or any salt containing this anion. In these salts, lead is in the oxidation state +2. It is the traditional term for the IUPAC name plumbate(II). For example, lead(II) oxide (PbO) dissolves in alkali to form salts containing the {Chem|HPbO|2|-} anion: Lead(II) hydroxide also dissolve...