(Encyclopedia) white lead, heavy, white substance, poisonous, insoluble in water, extensively used as a white pigment and base in paints. It is one of the oldest paint pigments used by humans.…
(Encyclopedia) tetraethyl leadtetraethyl leadtĕtˌrəĕthˈəl [key], (C2H5)4Pb, viscous, colorless, poisonous liquid. It is an organometallic compound prepared by reacting ethyl chloride with a sodium-…
(Encyclopedia) red lead, bright red to orange-red powder, also called minium, that is used in the manufacture of storage batteries, lead glass, and red pigments; a paint made with red lead is…
(Encyclopedia) lead poisoning or plumbismplumbismplŭmˈbĭzˌəm [key], intoxication of the system by organic compounds containing lead. These enter the body by respiration (of dust, fumes, or sprays) or…
(Encyclopedia) lead acetate, chemical compound, a white crystalline substance with a sweetish taste. Like other lead compounds, it is very poisonous. Lead acetate is soluble in water and glycerin.…
(Encyclopedia) lead, metallic chemical element; symbol Pb [Lat. plumbum]; at. no. 82; at. wt. 207.2; m.p. 327.502℃; b.p. about 1,740℃; sp. gr. 11.35 at 20℃; valence +2 or +4. One of the oldest metals…
