Lead Paint
Lead is considered to be one of the seven metals of antiquity. Its unique color properties lead to its use as a pigment on buildings around 3,000 B.C. This quality of lead pigment is one of the reasons that it was used as an additive in paint for thousands of years. Lead compounds, such as white lead (lead carbonate), red lead (lead dioxide), and lead chromate, are the most widely used pigments used in paints, primers, and varnishes.