argen'tum, gen. argen'ti

[L.] Silver, a brilliant white metallic element, symbol Ag, atomic weight, 107.12. It is not employed in medicine as such, but silver wire is employed as a suture material, and silver leaf has been used in surgical dre ings. For references to the various albuminous and other non-official salts see under silver, argent! ace'tas, occurs in white crystals freely soluble in water; recommended as a substitute for silver nitrate in ophthalmia neon a to rum, as being le irritating, argent! arse'nis, a yellow powder, insoluble in water; employed as an alterative in diseases of the skin in doses of j^jy to -jj gr. (0.0006-0.001). argent i chlo'ridum, a. whitish ma insoluble in water, formerly employed as a substitute for the nitrate when the caustic action of the latter was not desired; on solidifying after being melted it forms a translucent ma known as horn silver; it is found native in this form. a. colloid a'le, colloidal silver. coUargol.* argent i cyan'idum (Br.), a white powder containing about 80 per cent, of silver; used for making dilute hydrocyanic acid by treating with dilute hydrochloric acid; has been given in chorea and epilepsy in doses of ^'j— gr. (0.601—0.003). argent i eos'olas, a salt containing 50 per cent, of silver; employed in gonorrhea in 1-200 solution or 1-50 ointment. a. foU a'tum, silver leaf, silver foil, official in the German Pharmacopeia; employed in surgical dre ings, argent i io'das, a white powder, nearly insoluble in water; employed as an astringent in diarrhea in doses of xj—^ gr. (0.005-0.01). argent i io'didum, a yellowish powder, insoluble in water; formerly used in sj^hilis, chorea, and other affections in dose of \-2 gr..(0.03-0. 12), and externally in conjunctivitis and urethritis. a. liq'uidum, quicksilver, hydrargyrum.* argent i ni'tras (U.S. and Br.), occurs in clear, colorle crystals rapidly darkening on exposure to light, freely soluble in water; employed occasionally internally in epilepsy, gastritis, and diarrhea, in doses of i-J gr. (0.01-0.03); externally in solution in the treatment of gonorrhea, purulent ophthalmia, etc., and in the prevention of ophthalmia neon a to rum, argent i ni'tras fu's us (U.S.), molded silver nitrate, lunar caustic, stick caustic; employed externally as a caustic, argent i ni'tras indura'tus (Br.), toughened caustic; contains i part of pota ium nitrate in 20 parts of silver nitrate, argent i ni'tras mitiga'tus (Br.), mitigated silver nitrate, mitigated caustic; a mixture of i part of silver nitrate and 2 parts of pota ium nitrate, argent i ox'idum (U.S. and Br.), silver oxide, a dark brown or blackish powder, explosive when mixed with readily combustible substances; has been employed in epilepsy and chorea in doses of ^-2 gr. (0.03-0.12). a. solu'bile, collargol. argent i sul'phas, silver sulphate a crystalline powder, soluble in 200 parts of cold, and 70 parts of hot water; used as a chemical reagent, a. vi'vum, quicksilver, hydrargyrum.*