166 INORGANIC AGENTS 



Incompatibles. — Alkalies and their carbonates, acids 

 (except nitric and acetic), chlorides, potassium iodide, 

 astringent infusions and solutions of arsenic. 



Dose,—R. & C, gi-.v.-x. (.3-.6); Sh. & Sw., gr.i.-ii. (.06-.12); 

 D., gr.|-i (.008-.03). 



Argenti Nitras Dilutus. Diluted Silver Nitrate. (U. S. P.) 



Synonym, — Argenti et potasii nitras, B. P.; mitigated 

 caustic, E.; argentum nitricum crystallizatum, P. G.; azotas 

 (nitras) argenticus, azotate d'argent, nitre lunaire, Fr.; salpe- 

 tersaures silberoxyd, silbersalpeter, G. 



Derivation. — Melt silver nitrate, 30, with potassium 

 nitrate, 60, in a crucible at as low a temperature as possible. 

 Mix and cast into suitable moulds. 



Properties. — A white, hard solid, generally in the form 

 of pencils or cones of a finely granular fracture ; becoming 

 gray or grayish-black on exposure to light in presence of 

 organic matter ; odorless, having a caustic, metallic taste, 

 and neutral reaction. Each of its constituents soluble in 

 water and alcohol to the extent mentioned under Argenti 

 Nitras and Potassii Nitras. Used only externally. 



Argenti Nitras Fusus. Moulded Silver Nitrate. (U. S. P.) 



Synonym. — Lunar caustic, lapis infernalis, azotas (nitras) 

 argenticus fusus, E.; argentum nitricum fu8um,P.G.; azotate 

 d'argent fondu, pierre infernale, Fr.; hoUenstein, geschmol- 

 zenes salpetersaures silberoxyd, G. 



Derivation. — Melt silver nitrate, 100, with hydrochloric 

 acid, 4, at as low a temperature as possible. Mix and pour 

 into suitable moulds. 



Properties. — Practically same as above. Used only 

 externally. Silver oxide, cyanide, and iodide are official, 

 but unimportant in veterinary medicine. 



action op silver nitrate. 

 External. — Silver nitrate is more caustic in action than 

 any of the lead, copper or zinc salts (except the chloride). 



