180 INORGA.NIG AGENTS 



Z>ose.— H., 3i.-ii. (4.-8.); C, 3 ii.-iv. (8.-15.); Sh. & Sw., 

 gr.xx.-xxx. (1.3-2.); D., gr.i.-v. (.06-.3). 



Ferri Sulphas Exsiccatds. Dried Ferrous Sulphate. 

 2 FeSO, + 3 H,0. (U. S. & B. P.) 



Synonym. — Ferrum sulfuricum siccum,P. G.; sulfate de 

 fer desseche, Fr.; entwasserte schwefelsaures eisenoxydul, G. 



Derivation. — Allow ferrous sulphate, 100, to effloresce at 

 a temperature of 104^^ F. Then heat on a water bath till 

 the product weighs 65. 



Properties. — A grayish-white powder, soluble in water. 



Dose. — Same as sulphate. 



Ferri Sulphas Granulatus. Granulated Ferrous Sulphate. 

 Fe,SO, + 7 H,0. (U. S. & B. P.) 



Derivation. — Dissolve ferrous sulphate, 100, in distilled 

 water, 100, and add sulphuric acid, 5. Evaporate till the 

 product weighs 150. Pour alcohol, 25, upon it and dry. 



Properties. — Pale, bluish-green, crystalline powder. 



Dose. — Same as sulphate. 



Ferri Carbonas Saccharatus. Saccharated Ferrous Carbo- 

 nate. (U. S, <fe B. P.) 



Synonym. — Ferrum carbonicum saccharatum, P. G.; 

 carbonas ferrosus saccharatus, saccharure de proto-carbon- 

 ate de fer, Fr.; ziickerhaltiges kohlensaures eisen, G. 



Derivation. — Ferrous sulphate, 50 ; sodium bicarbonate, 

 35 ; sugar and distilled water. Made by solution, precipita- 

 tion and washing. 



Properties. — Greenish-brown powder, without odor ; 

 sweetish taste ; becomes oxidized on exposure to the air. 



Dose. — Twice that of iron sulphate. 



Mass A Ferri Carbonatis. Mass of Ferrous Carbonate. 

 (U. S. P.) 

 Dose.— D., gr.i.-v. (.06.3) in pill. 



