In chemistry, a plumbate is a salt having one of the several lead-containing oxoanions. Although the term plumbate can refer either to plumbate(II) or plumbate(IV), it traditionally refers specifically to plumbate(IV), whereas plumbate(II) is referred to as plumbite. Plumbates are formed by the reaction of lead(IV) oxide, {chem|PbO|2}, with alkali...