ANTIMONY SULPHIDE 227 



Antimonium. 



(The metal antimony is not used in medicine.) 



Antimonii Sulphidum. Antimony Sulphide. Sb^S^. 

 (Non-official.) 



Synonym. — Antimony trisulphide, E.; stibium oxydatum, 

 oxydum antimonioum yel stibicum; oxyde d'antimoine, Fr.; 

 antimonoxyd, G. 



Derivation. — Native antimony sulphide, purified by 

 fusion, and as free from arsenic as possible. 



Properties. — Steel-gray masses of a metallic lustre and a 

 striated, crystalline fracture, forming a black, or grayish- 

 black, lustreless powder ; without odor or taste, and per- 

 manent in the air. Insoluble in alcohol or water, 



ANTiMONn Sulphidum Pukificatum. Purified Antimony 

 Sulphide. Sb,S3. (Non-official.) 



Synonym. — Antimonium nigrum purificatum, B.P.; puri- 

 fied antimony trisulphide, E. 



D&rivation. — Antimony sulphide, 100 ; purified by macer- 

 ation in ammonia water, 50 ; washing and drying. U. S. P. 



Properties. — A heavy, grayish-black, lustreless powder ; 

 without odor or taste, and permanent in the air. Insoluble 

 in water or alcohol. 



Dose. — The antimony sulphides should not be used in 

 medicine. Dose would be twice or thrice that of tartar 

 emetic. 



Antimonium Sulphueatum. Sulphurated Antimony. 

 (B. P.) 



Synonym. — Kermes Mineral. Chiefly antimony trisul- 

 phide (SbjSj), with a very small amount of antimony 

 trioxide. 



Derivation. — Boil purified antimony sulphide, 100, with 

 solution of soda, 1200. (U. S. P.) Sb,S3 + 4 Na O H = Na 



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