17 Pearl White

Is an insoluble basic nitrate of bismuth, a pearly white powder of loose

texture, turning grey on exposure, and blackened by sulphuretted

hydrogen. It is chiefly used as a cosmetic, but is said to injure the

skin, rendering it yellow and leather-like; and it has been known to

cause a spasmodic trembling of the face, ending in paralysis.

Another preparation under this name, and now obsolete we believe as a

pigment, was obtained from mother-of-pearl. It is described as

exquisitely white, and of good body in water, but of little force in oil

or varnish.

140 Bice A Black The General Contrast Or Harmonizing Colour Of Such Compounds facebooktwittergoogle_plusredditpinterestlinkedinmail