ALUMEN EXSICCATUM. 



AMMONIUM. 



15 



Incompatibilities: To alum solution add solution of 



Pb. Acet 



Ca(OH) 2 



HgCl 2 



Ac. Tart. . 



NaOH 



Na 2 B 4 O 7 



NaHCO 3 



Ac. Gall 



Alum is a mild cauterant, an irritant astringent, and a styptic. 



AMMONIUM. 



Of the seven official salts of Ammonium two only have the characteristic ion 

 action. These are the Carbonate and Chloride. 



Ammonium Carbonate is a varying mixture of acid ammonium carbonate and 

 ammonium carbamate. It is prepared by subliming a mixture of calcium carbonate 

 and ammonium sulphate. 



Properties: 



Appearance 



Color 



Pdor 



Taste 



Effect of exposure to air 



Incompatibilities: To Ammonium Carbonate T. S. add 



Any acid solution _ Any iron solution 



The chief utility of Ammonium Carbonate is to irritate the terminals of the tri- 

 geminus when the ammonia gas therefrom is inhaled. 



The Carbonate is used in preparing Spiritus Ammonii Aromaticus. 



Ammonium Chloride is a purified product of the crude chloride resulting from 

 treating gas liquor with hydrochloric acid. 



Properties: 



Appearance Solubility: 



Color . H 2 O 



Odor C 2 H 5 OH 



Taste 



Effect of exposure to moist air 



Incompatibilities: To Ammonium Chloride, T. S., add 



Solubility : 



H 2 O ... 



C 2 H 5 OH 



Effect of hot H 2 Q 



AgNOn, T. S. 

 NaOH, T. S. . 



Na 2 C0 3 , T. S. 

 An acid ... 



Ammonium Chloride seems to have a beneficial effect on the type of sub-acute 

 gastritis due to passive hepatic congestion. 



Average dose, 0.3 Gm. Administered in the nascent vapor state, it is used for 

 bronchitis. 



