Plumbite

In chemistry, plumbite is the PbO2−2 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 HPbO−2 anion (hydrogen plumbite):[1]

PbO + OH− → HPbO−2

Lead(II) hydroxide also dissolves in excess alkali to form the [Pb(OH)6]4− anion (hexahydroxyplumbate(II)):[2]

Pb(OH)2 + 4 OH− → [Pb(OH)6]4−

The plumbite ion is a weak reducing agent. When it functions as one, it is oxidized to the plumbate ion.

See also

References
  1. Amit Arora (2005). Text Book Of Inorganic Chemistry. Discovery Publishing House. pp. 450–452. ISBN 81-8356-013-X.
  2. E. N. Ramsden (2000). A-level chemistry. A-Level Chemistry Series (4th ed.). Nelson Thornes. p. 434. ISBN 0-7487-5299-4.
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