Wikipedia
Lead(II) sulfide (also spelled sulphide) is an inorganic compound with the formula Pb S. PbS, also known as galena, is the principal ore, and most important compound of lead. It is a semiconducting material with niche uses.
Lead sulfide refers to two compounds containing lead and sulfur:
- Lead(II) sulfide, PbS, containing lead in the +2 oxidation state, naturally occurring as the mineral galena
- Lead(IV) sulfide, PbS, containing lead in the +4 oxidation state
Lead(IV) sulfide is a chemical compound with the formula Pb S. This material is generated by the reaction of the more common lead(II) sulfide, PbS, with sulfur at >600 °C and at high pressures. PbS, like the related tin(IV) sulfide SnS, crystallises in the cadmium iodide motif, which indicates that Pb should be assigned the formal oxidation state of 4+.
Lead(IV) sulfide is a p-type semiconductor, and is also a thermoelectric material.
Usage examples of "lead sulfide".
The main component of galena is lead sulfide, and it is readily oxidized, when roasted in a wood fire, to form lead oxide.