238 INORGANIC AGENTS 



iodoform or iodol. It is used with some benefit in dry 

 skin diseases, as psoriasis, in powder or ointment. Other 

 antiseptic dusting powders include acetanilid, bismuth sub- 

 nitrate, salol, and boric acid. Acetanilid has been shown 

 by Langdon Frothingham to be a good anti-bacterial agent. 

 It is cheap and may be applied pure, and it is an efficient 

 substitute for iodoform. A few cases of poisoning have 

 been reported following its extensive surgical use. Bismuth 

 subnitrate and salol may induce poisoning when used over 

 large surfaces. They are dessicants and feeble antiseptics. 

 Boric acid is harmless and mildly antiseptic. 



SECTION X. 

 Sulphur. 



Official Varieties. 



Sulphur Sublimatum. Sublimed Sulphur. S. 

 (U.S.&B.P.) 



Synonym. — Flowers 'of sulphur, flores sulphuris, E.; 

 fleurs (creme) de soufre, Fr.; schwefelblumen, schwefel- 

 bliithe, G. 



Derivation. — Obtained from native sulphur by sublim- 

 ation. 



Properties, — A fine, yellow powder, having a slightly 

 characteristic odor and a faintly acid taste. Insoluble in 

 water ; slightly soluble in absolute alcohol ; more readily 

 soluble in benzine, benzol, oil of turpentine and many other 

 oils; also in ether, chloroform, and in boiling, aqueous 

 solutions of alkaline hydrates. 



PREPARATIONS. 



Sulphur Lotum. Washed Sulphur. S. (U. S. & B. P.) 



Synonym. — Sulphur depuratum, llores sulphuris loti, P. G.; soufre 

 lave, Fr. ; gereinigte schwefelblumen, G. 



