1 8 INORGANIC SALTS AND THEIR PREPARATIONS 



ZINCI CARBONAS PR-rECIPITATUS. Precipitated Zinc Carbonate. Impal- 

 pable, white powder without odor or taste, permanent, insoluble in water 

 or alcohol. 



Action: Astringent, externally. 



ZINCI CHLORIDUM. Zinc Chloride, ZnCl 2 . White granular powder, or fused 

 masses, very deliquescent, odorless. In solution, the taste is astringent 

 and metallic. 



Action: Caustic, externally. 



Preparation: Liquor Zinci Chloridi, U.S.P. 



Zinc lodidum. Zinc Iodide, ZnI 2 . White granular powder, odorless, taste, saline, 

 sharp metallic, readily soluble in neutral liquids. 



Action: Alterative, astringent, antiseptic. 



Dose: 0.065 Gm. (i gr.). 



ZINCI OXIDUM. Zinc Oxide, ZnO. White, fine, amorphous powder, odorless, 

 tasteless, insoluble in water or alcohol. 



Action: Antiseptic, astringent (rarely internally). 



Dose: 0.250 Gm. (4 gr.). 



Preparations: Unguentum Zinci Oxidi, U.S.P. 



Unguentum Extensa, N.F. 



Pasta Zinci, Pasta Zinci Mollis, Pasta Zinci Sulphurata, N.F. 

 ZINCI PHENOLSULPHONAS. Zinc Phenolsulphonate, Zinc Sulphocarbolate, 

 Zn(CsH 6 O4S) 2 8H2O. Colorless, transparent, rhombic prisms or tabular 

 crystals, odorless; astringent, metallic taste, soluble in 1.7 parts water or 

 alcohol. 



Action: Antiseptic, astringent. 



Dose: 0.125 Gm. (2 gr.). 



ZINCI STEARAS. Zinc Stearate. Very fine white powder, tasteless, having 

 a very faint odor resembling fat, insoluble in water, alcohol or ether, 

 soluble in 3 parts glycerin. 



Action: Used as dusting powder and in ointments. 



Preparations: Unguentum Zinci Stearatis, U.S.P. VIII. 



ZINCI SULPHAS. Zinc Sulphate, White Vitriol, ZnSO 4 -f 7H 2 O. Colorless, 

 transparent, rhombic crystals or a granular, crystalline powder, without 

 odor, and having an astringent, metallic taste, efflorescent, soluble in 

 water or in 3 parts glycerin, insoluble in alcohol. 



Action: Astringent, externally. 

 Emetic, internally. 



Dose: I Gm. (15 gr.). 



Preparations: Liquor Zinci et Ferri Compositus, N.F. 



Liquor Zinci et Alumini Compositus, N.F. 



ZINCI VALERAS. Zinc Valerate, Zn(C s H,O 2 ) 2 + 2H 2 O. White, pearly scales, 

 having the odor of valeric acid, and a sweetish, astringent, metallic taste, 

 soluble in about 50 parts of water, and in about 35 parts of alcohol. 



Action: Antispasmodic. 



Dose: 0.125 Gm. (2 gr.). 



Preparation: Elixir Zinci Valeratis, N.F. 



ZINCUM. Zinc, Zn. Bluish-white metal, having a peculiar taste and a percep- 

 tible odor or when rubbed, soluble in dilute sulphuric acid, etc. 



Action: Used to prepare ZnSO and ZnCl 2 . 



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



ALUMEN. Alum, A1NH<(SO 4 ) 2 + i2H 2 O or AlK(SO 4 )i + I2H ? O. Both 

 occur in large colorless crystals, or as white powders. Alum is odorless 

 and has a sweetish and strongly astringent taste. Potassium alum is 

 soluble in 7.2 parts of water, insoluble in alcohol, soluble in glycerin. 

 Ammonium alum is less soluble than potassium alum. 

 Action: Astringent. 

 Dose: 0.5 Gm. (8 gr.). 

 Preparation: Alumen Exsiccatum. 



* Alumni Chloridum. Aluminum Chloride, Aids + 6H 2 O. White, or yellowish- 

 white deliquescent crystalline powder, nearly odorless ; taste, sweet and very 

 astringent; soluble in water and glycerin, also in 3 parts alcohol. 

 Dose: 0.3 Gm. (5 gr.). 



ALUMEN EXSICCATUM. Exsiccated Alum, Dried Alum, Burnt Alum, A1NH<- 

 (804)2 or A1K(SO4) 2 . White, granular powder, without odor, having a 



