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White lead is lead carbonate. The name "white lead" is also used to describe a lead-containing white paint that was often used as a primer coat on metal. In this context, "red lead" was the red-colored lead-containing primer. White lead is a pigment composed of Lead carbonate and Lead hydroxide. It is used as a rust preventive and it used to be used in house paint until it was recognized that exposure to the old powdering paint and chips created a lead poisoning hazard to people.

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15y ago

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