BISMUTH

(Bi=208.5), brittle metal of crystalline texture, white or yellowish tinged with faint red; S.G. 9.8; M.P. 268° C.; expands on solidification; found native in Cornwall, France, Germany (especially Saxony), Liberia, etc. B. exists combined with oxygen, carbonic acid, lead, and tellurium; is simple to separate, and readily forms alloys. ‘fusible metal’ is formed of 1 part lead, 1 part tin, and 2 parts bismuth. This metal melts at 93.75° C. B. is used externally and internally in medicine.