196 INOKGANIO AGENTS 



LiQUOE Ferbi Subsulphatis. Solution of Ferric Subsul- 

 phate. (U. S. P.) 



Synonym.— Solution of basic ferric sulphate, FeO (SO^)^, 

 Monsel's solution, solution of persulphate of iron, E.; liquor 

 hemostatique de Monsel, Fr.; basischscliewefelsaures eisen- 

 oxydlosung, Monsel's eisenlosung, G. Contains about 13.6 

 per cent, of metallic iron. 



Derivation. — Ferrous sulphate, 675 ; sulphuric acid, 65 ; 

 nitric acid and distilled water, of each a sufficient quantity 

 to make 1,000. 



Properties. — A dark, reddish-brown liquid, odorless, or 

 nearly so ; of an acid, strongly styptic taste and an acid 

 reaction ; miscible with water and alcohol. 



i>ose.— H. & C, Sss. (15.); Sh. & Sw., IT^x.-xx. (.6-1.3); 

 D.,niii.-x. (.12-.6). 



It has no value for internal use. 



Febei Hydboxtdum Cum Magnesh Oxido. Ferric Hydroxide 

 with Magnesium Oxide. (U. S. P.) 



(Arsenic Antidote.) 



Solution of ferric sulphate, 40 cc; water, 125 cc. 

 Magnesia, 10 gm.; water, q.s. Keep solutions separate till 

 ready for use ; then mix. 



Uses. — This preparation is used as a chemical antidote 

 to arsenic, whereby the arsenic mass is mechanically en- 

 wrapped and converted into the insoluble arsenite. The 

 administration of the arsenic antidote should be followed 

 by emetics, or the stomach pump. 



Dose. — Large quantities should be repeated frequently 

 ad libitum. 



Febki et Potassii Tabtbas. Iron and Potassium Tartrate. 



(U. S. P.) 

 (Potassio- Ferric Tartrate.) 

 Synonym. — Ferrum tartaratum, B. P.; tartarua ferratus, 



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