- Definition of Pb(OH)2
Pb(OH)2, commonly known as lead(II) hydroxide, is a chemical compound made up of lead Pb2+ ions and hydroxide OH- ions. The Pb(OH)2 molecule consists of a lead atom bonded to two hydroxide atoms. Its molar mass is 241.2 gmol−1.
- Characteristics: Pb(OH)2
Pb(OH)2 is an odorless white solid. Its environment has a neutral pH. In terms of chemical properties, Pb(OH)2 is insoluble in water but soluble in acid. It can also react with metals, non-metals and salts in some cases.
- Common chemical equations of Pb(OH)2
Pb(OH)2 can react with metals, acids, non-metals, and salts. For example, the reaction to produce Pb(OH)2 from Pb and water:
Or the reaction of Pb(OH)2 with hydrochloric acid:
Pb(OH)2 + 2HCl -> PbCl2 + 2H2O
- Preparation of Pb(OH)2
In the laboratory, Pb(OH)2 is typically prepared from the reaction between Pb(NO3)2 and NaOH:
Pb(NO3)2 + 2NaOH -> Pb(OH)2 + 2NaNO3
On an industrial scale, Pb(OH)2 is produced by reacting PbO with water: