Used primarily in electroplating processes, especially for lead-tin and lead-silver alloy deposition, where it provides good solubility and stability of lead ions in solution. It serves as a source of Pb²⁺ ions in organic synthesis, particularly in reactions requiring mild Lewis acid conditions. Also employed in the preparation of other lead-containing compounds and in some specialized battery research. Due to the toxicity of lead, its use is limited and requires careful handling and disposal.