insoluble

in water; occasionally employed to relieve irritation in dermatitis; it is used largely in the manufacture of paint and in the arts and is thus productive of lead poisoning, p. iod'idum (N.F., Br.), lead iodide, a bright yellow powder, or yellow lustrous scales; employed externally as a stimulating ointment in the case of sluggish ulcers, and has been used internally in the treatment of tuberculous glands in doses of gr. i— (0.03-0.12). plum'bi ni'tras (N.F.), lead nitrate, occurs in colorle , translucent or opaque white, soluble crystals; employed externally in the treatment of chapped hands, cracked nipples, and other similar lesions, plum'bi ox'idum (U.S., Br.), lead oxide, litharge, a yellowish to reddish powder; employed externally as an application to bums, and is used to make the lead plaster of the B.P. plum'bi ox'idum ru'brum (N.P.), red oxide of lead, red lead, a bright orange-red powder turning black when heated.