Lead(II) nitrate is a chemical compound, the inorganic salt of nitric acid and lead, with the formula Pb(NO3)2. It is a colourless crystal or white powder and a strong, stable oxidizer. Unlike most other lead(II) salts, it is soluble in water. Its main use from the Middle Ages, under the name plumbum dulce, has been as raw material in the production of many pigments. Since the 20th century, it has been industrially used as a heat stabilizer in nylon and polyesters, and in coatings of photothermographic paper. Commercial production did not take place until the 19th century in Europe, and in the United States until after 1943, with a typical production process of metallic lead or lead oxide in nitric acid.
Lead(II) nitrate is toxic and probably carcinogenic to humans. Therefore, it is to be handled and stored with the appropriate safety precautions.