144 INOEGAMIC AGENTS 



The other sodium salts are of no particular value in 

 veterinary practice except sodium bromide See Bromine, 

 p. 241.) 



Ammonium.* 



Ammonium is not employed in medicine. Ammonia 

 (liOlg) exists in the free state as a gas, and is used in medi- 

 cine in solution in water or alcohol. 



Aqua Ammonia. Ammonia Water. (U. S. P.) 



Synonym. — Liquor ammonise, B. P. ; spirits of harts- 

 horn, E. ; liquor ammonii caustici, P. G. ; spiritus salis am- 

 moniaci causticus, ammonia aqua soluta, ammoniaque 

 liquide, eau (solution, liqueur) d' ammoniaque, Pr. ; sal- 

 maikgeist, setzammoniak, ammoniakfliissigkeit, G. An aque- 

 ous solution of ammonia (jSTHs), containing 10 per cent., by 

 weight, of the gas. 



Properties. — A colorless, transparent liquid, having a 

 very pungent odor, an acrid, alkaline taste, and a strongly 

 alkaline reaction. Spec. gr. 0.960. 



Derivation. — Evolve ammonia gas by heating am- 

 monium chloride with calcium hydrate, and pass it into 

 water. 



2 NK^ CI + Ca(0H)2 = 2OT-I3 + 2 HaO + Ca CV 



Dose.—R. & C, §ss.-i. (15.-30.); Sh. & Sw., 3i.-ii. 

 ;(4.-8.); D., 1Ttx.-xx. (.6-1.3). 



PKEPARATION. 



Linimentum Ammoniw. Ammonia Liniment. (U. S. & B. P.) 

 Ammonia water, 250 ; cottonseed oil, 600 ; alcohol, 50. (U. S. P.) 



Aqua Ammonia; Fobtiuk. Stronger Ammonia "Water. 

 (U.S. P.) 



'Synonym. — Liquor ammonia; fortis, stronger solution 

 of ammonip,, B. P. ; eau d'ammoniaque forte, Fr. ; starker 

 salmiakgeist, G. 



An aqueous solution of ammonia (ISTHg), containing 28 

 per cent., by weight of the gas. 



Derivation. — Same as aqua ammonise. 



Properties. — A colorless, transparent liquid, having an 



* The radical Ammonium (NH,) of the Ammonium compoiintis is rot a metal 

 although It resembles so closely— in physical, chpmicai. anrl physiological properties 

 —•the other alkaline metals, that it is usually classed with them. 



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