Lead selenide is the selenide of lead, with the chemical formula PbSe, and it is a cubic crystal with a NaCl structure. Melting point: 1078℃. Molecular weight: 286.16. CAS Number: 12069-00-0. Density: 8.1g/cm ³. Its direct band gap is 0.27 eV at room temperature. Lead selenide can be obtained by the reaction of selenourea and lead acetate in the presence of hydrazine (N2H4) or potassium iodide (KI3).

Lead telluride properties: Gray cubic crystal system. Melting point: 924℃. Relative molecular mass: 334.8.CAS registration number: 1314-91-6. Density: 8.164g/cm ³. The conventional method is to mix high-purity lead and tellurium in a stoichiometric ratio and store them in quartz ampoules. In a furnace, quartz ampoules are melted at 1050 ° C under vacuum for 12 hours, and then rapidly cooled in air to synthesize PbTe. The prepared PbTe can be grown into PbTe single crystals by gas-phase growth and zone melting methods.

Blue lead has a grayish-white metallic luster, and a cubic lattice structure can be seen in its cross-section. It is soft in texture and can be scratched by nails. It has good ductility and no work hardening at room temperature. The measured density fluctuates within a range of 11.34g/cm³ to 7.6g/cm³ due to morphological differences, and the melting point remains stable at 327.5℃.

Lead powder is a mixture containing 60% to 80% lead oxide and 20% to 40% lead, and it is one of the main raw materials used to manufacture active substances for plates. The quality of lead powder has a significant impact on the manufacturing of lead paste, the process parameters of plate formation, and the electrical performance of batteries. Lead powder has scaly, flaky and clustered structures.