42 TETERIKAKT MATERIA MEDICA. 



Ferri Carhonas Saccharatus — saccharated car- 

 bonate of iron. A greenish-gray powder, gradually 

 oxidized by contact with air, having at first a sweet- 

 ish taste, and a metallic or ferruginous after-taste. 

 Neutral reaction, and but partly soluble in water; 

 completely soluble in dilute hydrochloric acid, with 

 evolution of H.COj, forming a clear yellow liquid. 

 It is prepared by mixing freshly prepared carbonate 

 of iron with sugar, and should contain about thirty- 

 five per cent, of the carbonate. Dose: H., 3i.-iv. ; 

 D., gr. ij.-x. 



Ferri lodidum — iodide of iron. Greenish tabular 

 crystals, which turn brownish-red on exposure to air. 

 As it is very readily decomposed it is but seldom 

 used except as the more stable compound. 



Syrupus Ferri lodidi — syrup of iodide of iron. 

 This when properly prepared is a light green, clear 

 syrup, and may be made extemporaneously as fol- 

 lows : 



IJIodipuri., 3xiij.-3i. 



Ferri pulv. , 3 vijss. 



AqusB dest § iij. 



Syr. simplicis, § xxix. 



Ft. syr. legeartis. Dose: H. fl. |ss.-jj. ; D., ni x.-xxx. 



This should be kept in the light, in small bottles, and 

 a small iron nail placed in each to take up any iodine 

 which may become free from time to time. 



Ferri Sulphas — green vitriol, copperas, sulphate 

 of iron. Large pale-greenish prisms or lumps, efflor- 

 escent and absorbing oxygen on exposure to air, odor- 

 less, saline, styptic taste, acid reaction, soluble in 1.8 



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