PbNO32

PbNO32 is the nonstandard way some sources write the compound Pb(NO3)2, which is lead(II) nitrate. This inorganic salt is formed from lead(II) ions and nitrate ions and is widely used as a laboratory reagent and in materials synthesis. The conventional formula Pb(NO3)2 reflects its composition: one lead(II) cation balanced by two nitrate anions.

In appearance, lead(II) nitrate is a white, crystalline solid at room temperature and it is readily soluble in water, producing colorless solutions. The compound acts as an oxidizing agent, particularly upon heating, and it decomposes to give nitrogen dioxide, oxygen, and lead(II) oxide: 2 Pb(NO3)2 → 2 PbO + 4 NO2 + O2. This thermal decomposition is the source of toxic NO2 fumes.

Preparation methods typically involve dissolving lead-containing materials (such as lead(II) oxide, lead carbonate, or metallic lead) in nitric acid, for example PbCO3 + 2 HNO3 → Pb(NO3)2 + CO2 + H2O. In solution, Pb2+ ions can form various complexes with ligands, and the salt can be used to prepare other lead salts by metathesis or to provide lead ions for synthetic reactions.

Applications include serving as a convenient source of Pb2+ in chemical synthesis and qualitative inorganic analysis, and as a precursor to lead(II) oxide by calcination. It has historical uses in certain pyrotechnic formulations, though these are limited today due to toxicity concerns.

Safety and handling: lead(II) nitrate is toxic and poses health risks if ingested, inhaled, or absorbed through the skin. It should be handled with appropriate personal protective equipment, used under proper ventilation, and stored away from organic materials and reducing agents. Environmental precautions are important because lead compounds are hazardous to aquatic life.