154 INORGANIC AGENTS 



TiNCTURA Ferri Pehchloridi. Tincture of Iron Perchloride. (B. P.) 



Dojfe.— Same as Tinctura Ferri Chloridi (U. S. P.) 



Liauott Ferri Subsulphatis. Solution of Ferric Subsulphate. (U. S. P.) 



Si/nonym.— Solution of basic ferric sulphate FeO (SO^s. Monsel's solution, 

 solution of persulphate of iron, E.; liquor h6mostatique de Monsel, Fr.; basisch- 

 schewefelsaures eisenoxydlosung, Monselsche eisenlosung, G. Contains about 13.6 

 per cent, of metallic iron. 



Derwation. — Ferrous sulphate, 6T5; sulphuric acid, 65; nitric acid and dis- 

 tilled 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. 



Dose.—H. & C, 3ss; (15) ; Sh. & Sw., Tax-xx, (.6-1.3) ; D., niii-x, (.12-.6). 



It has no value for internal use. 

 Ferri Hydroxidum Cum Magnesii Oxido. Ferric Hydroxide with Magnesium 



Oxide. (U. S. P.) 

 (Arsenic Antidote.) 



Solution of ferric sulphate, 40 mils.; water, 125 mils; magnesium oxide, 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 enwrapped and converted into the insoluble arsenite. 

 The administration of the arsenic antidote should be followed by emetics, or 

 stomach lavage. 



Dose. — Large quantities should be repeated frequently ad libitum. 



Ferri et Potassii Tartras. Iron and Potassium Tartrate. (Non-official.) 

 (Potassio-Ferric Tartrate.) 



Synonym. — Ferrum tartaratura, B. P. ; tartarus ferratus, P. G. ; ferri potassio- 

 tartras, ferrum tartarizatum, tartras ferico-kalicus, etc., E.; tartrate de fer et de 

 potasse, tartre martial, Fr.; weinsaures eisenoxyd-kali, eisenweinstein, G. 



Properties. — Thin, transparent scales, varying in color from garnet-red to 

 reddish-brown; without odor, and having a sweetish, slightly ferruginous taste; 

 slightly deliquescent in the air; very soluble in water; insoluble in alcohol. Iron 

 and potassijim tartrate contains 15 per cent, of metallic iron. 



Dose. — D., gr.v-x, (.3- .6). 



Ferri et Ammonii Citras. Iron and Ammonium Citrate. (U. S. & B. P.) 



Synonym. — Ferrum citricum ammoniatum, P. G.; ferri ammonio-citras, ferro- 

 ammonium citricum, ammonio citrate of iron, E. ; citrate de fer et d'ammoniaque 

 (de fer ammoniacal), Fr. ; citronensaures eisenoxyd-ammonium (ammonlak), G. 



Properties. — Thin, transparent, garnet-red scales, odorless, and having a 

 saline, mildly ferruginous taste; deliquescent in moist air; soluble in water; in- 

 soluble in alcohol. Iron and ammonium citrate contains 16 per cent, of metallic 

 iron. 



Dose.—D., gr.v-x, (.S-.6). 

 Ferri et QuiifiN^E Citras. Iron and Quinine Citrate. (U. S. & B. P.) 



Synonym. — Ferri et quinine citras solubilis, chinum ferro-citricum, P. G. ; 

 citras ferrico-quinicus, citrate de fer et de quinine, Fr. ; citronensaures eisen 

 chinin, G. 



Properties. — Thin, transparent scales, of a greenish or golden-yellow color, 

 odorless, and having a bitter, mildly ferruginous taste. Rapidly and completely 

 soluble in cold water, partly soluble in alcohol. Quinine and iron citrate con- 

 tains 11.5 per cent, of anhydrous quinine and not less than 13 per cent, of metallic 

 iron. 



Dose. — D., gr.v-x, (.3-.6). 



General Action of Iron and Its Salts. 



External. — The local action of iron salts — like those of the other 

 heavy metals — depends upon coagulation of the proteids of the tissues 

 through the formation of albuminate compounds with the metal and the 

 setting free of the acid ions of the salt. Certain salts of iron, depending 



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