The formula for lead (II) sulfide is PbS. Lead (II) sulfide is a gray or silver crystalline solid with a molecular weight of 239.266 and a density of 7.57 to 7.59 grams per cubic centimeter.
Lead (II) sulfide melts at 1,114 degrees Celsius and boils at 1281 degrees Celsius. When heated, this substance emits toxic fumes consisting of lead and sulfur oxides. Lead (II) sulfide occurs naturally as galena, and it is an ore of lead and silver. Lead (II) sulfide is unable to donate any hydrogen bonds, but it can accept one hydrogen bond. This substance is photoconductive, and it dissolves in nitric acid.