170 INORGANIC AGENTS 



Cerium. 



(Cerium is not employed medicinally.) 



CeriiOxalas. Cerium Oxalate. Ce^ (C^OJj + 9 H^O. 



(U. S. & B. P.) 



Synonym. — Cerous oxalate. 



Derivation. — Precipitate a solution of ammonium oxalate 

 ■witli a soluble salt of cerium. 



Properties. — A white, granular powder, without odor or 

 taste, and permanent in the air ; insoluble in water, alcohol 

 or ether. 



Dose. — D., gr.iii.-v. (.18-.3). 



Action and Uses. — The physiological details concerning 

 the action of cerium are unknown. It is useful in relieving 

 vomiting of a reflex or nervous character, and is often com- 

 bined with bismuth salts. Cerium is absorbed with diffi- 

 culty from the digestive tract. Given intravenously, it 

 produces poisoning resembling that of bismuth. 



SECTION IV. 



Plumbum, Argentum, Zincum, Cuprum and Bismuthum. 



Plumbum. 



(Lead is not used in the metallic state in veterinary medicine, 

 except as a last resort.) 



Plumbi Oxidum. Lead Oxide. PbO. (U. S. & B. P.) 



Synonym. — Litharge, E.;lithargyrum, P. G.;bleiglatte,G. 



Derivation. — Made by roasting lead in the air. 



Properties. — A heavy, yellowish or reddish-yellow pow- 

 der, or minute scales, without odor or taste. On exposure 

 to the air it slowly absorbs moisture and carbon dioxide. 

 Almost insoluble in water ; insoluble in alcohol. Reaction 

 faintly alkaline. Lead oxide is only valuable for its prepa- 

 rations. 



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