INORGANIC SALTS AND THEIR PREPARATIONS IQ 



sweetish astringent taste, and attracting moisture upon exposure to the 

 air; soluble in 14 parts of water; also in 1 .4 parts of boiling water; insoluble 

 in alcohol. 



Used externally as an escharotic. 



ALUMINI HYDROXIDUM. Aluminum Hydroxide (Principally) A1(OH) 3 . 

 White, bulky, amorphous powder, odorless and tasteless; permanent in 

 air, insoluble in water or alcohol, soluble in hydrochloric or sulphuric 

 acid, or alkaline hydroxides. 



Use: Used externally as an astringent. 



*Aluminum Sulphas. Aluminum Sulphate, A1 2 (SO 4 )3 + i6H 2 O. U.S.P. VIII. 

 White, crystalline powder, shining plates, or fragments, without odor, 

 having a sweetish astringent taste, soluble in water, insoluble in alcohol. 



Uses: Used as caustic and preservative of cadavers. 



GROUP IV. LEAD, SILVER, COPPER AND BISMUTH 



THE OFFICIAL U.S.P. AND N.F. LEAD SALTS 



PLUMBI ACETAS. Lead Acetate, Sugar of Lead (Pb(C 2 H,O 2 ) + 3H 2 O). Color- 

 less, shining, transparent, monoclinic prisms or plates or as heavy white, 

 crystalline masses, or granular crystals, having a faintly acetous odor 

 and a sweetish astringent, afterward metallic, taste; efflorescent, and 

 absorbing carbon dioxide on exposure to the air. Soluble in 1.4 parts 

 of water, 38 parts of alcohol; soluble in boiling water and in glycerin. 



Action: Astringent. 



Dose: 0.065 Gm. (i gr.). 



Preparations: Liquor Plumbi Subacetatis, U.S.P. (Contained in Lead water). 

 Ceratum Plumbi Subacetatis, U.S.P. VIII. 

 Pilula Opii et Plumbi, N.F. 

 Lotio Plumbi et Opii, N.P. 



" 'Plumbi Carbonas. Lead Carbonate, White Lead, approximately (PbCos) 2 Pb- 

 (OH) 2 . Heavy, white, opaque powder, or as a pulverulent mass, without 

 odor or taste; permanent in air, insoluble in water or alcohol, but soluble 

 in acetic acid or dilute nitric acid, with effervescence. 



Seldom used in medicine. 



*Plumbi lodidum. Lead Iodide, U.S.P. VIII, PbI 2 . Heavy, bright yellow powder, 

 without odor or taste; permanent in air, soluble in about 1,300 parts 

 of water, 200 parts of boiling water, very slightly soluble in alcohol, 

 soluble in fixed alkalies. 



Action: Alterative, discutient, externally. ' 



Preparation: Unguentum Plumbi lodidi, N.F. 



PLUMBI OXIDUM. Lead Oxide, Litharge, PbO. Heavy, yellowish or reddish- 

 yellow powder, or in minute scales, without odor or taste, almost insoluble 

 in water, insoluble in alcohol. 



Preparations: Emplastrum Plumbi, U.S.P. 



Liquor Plumbi Subacetatis, U.S.P. 



*Plumbi Oxidum Rubrum. Red Oxide of Lead, Red Lead, Pb 2 PbO 4 . Heavy, 

 orange-red powder without odor or taste, almost insoluble in water, 

 insoluble in alcohol. 



THE OFFICIAL U.S.P. AND UNOFFICIAL SILVER SALTS 



Ar genii Cyanidum. Silver Cyanide, AgCN, U.S.P. VIII. A white powder, 

 without odor or taste, insoluble in water, alcohol or cold nitric acid; 

 soluble in boiling nitric acid. 



Formerly used in preparing acidum hydrocyanicum dilutum. 

 ARGENTI NITRAS. Silver Nitrate, AgNO 3 . Colorless, transparent tabular, 

 rhombic crystals becoming grey or greyish black on exposure to the 

 light in the presence of organic matter; without odor, but having a bitter 

 caustic and strongly metallic taste, soluble in water and in 30 parts 

 alcohol. 



Action: Externally, caustic, antiseptic; internally, in gastritis and diarrhea. 

 Dose: o.oi Gm. (% gr.) (pills). 

 Preparation: Argenti Nitras Fusus. 



