ACACI^E GUMMI. GUM ACACIA. The gum exuded by Acacia 

 Senegal and other species. In rounded or ovoid brittle tears, either 

 colourless or of a pale yellowish tinge, often opaque due to numerous small 

 fissures. Small angular fragments may occur with glistening faces. 

 Nearly inordorous, taste bland and mucilaginous. Insoluble in alcohol, 

 soluble 1 in 1 of water forming a viscid, slightly acid solution. 



Incompatibles, alcohol and sulphuric acid. Borax, ferric, and lead 

 salts render it gelatinous. 



1 Mucilago Acacise. 40; Water, toioo. 



Acetanilidum. Acetanilide. (Antifebrin.) Dose, 1-3 grs; >-2 

 dgms. 



Phenylacetamide, CHsCONHCeHs. Colourless, inodorous, glistening, 

 lamellar crystals with a pungent taste. Soluble 1 in 200 of cold, 1 in 

 18 of hot water; 1 in 4 of alcohol; and in ether and chloroform. 



Incompatibles, strong solutions of sodium and potassium hydrate 

 (anilin formed) ; bromides and iodides, spirits of nitrous ether, amyl nitrite 

 (diazo compounds formed) ; a red colour is given with tincture of the chloride 

 of iron: forms liquids if triturated with phenol, resorcin, and thymol, and 

 a damp powder with chloral. 



Aceta (see Cantharis, Ipecacuanha, Squill). 



ACIDUM ACETICUM. ACETIC ACID. A colourless, pungent liquid 

 miscible with alcohol and water. Contains 33% by weight of real acid, 

 CH S COOH. Sp. Gr. 1.044. 



1 Acidum Aceticum Dilutum. Dose, ^2-2 fl. dr.; 2-8 c.c. 

 12.47; Water, to 100. Contains 4.27% of real acid. 



2 Oxymel. Dose, 1-2 fl. dr.; 4-8 c.c. 

 10; clarified Honey, 80; Water to 100. 



Acidum Aceticum Glaciate. A colourless, pungent liquid or crys- 

 talline mass. Contains 99% by weight of real acid. Sp. Gr. 1.058. 



Acidum Arseniosum (see Arsenium). 

 Acidum Benzoicum (see Benzoinum). 

 Acidum Boricum (see Boron). 



ACIDUM CARBOLICUM. PHENOL. (Carbolic Acid). Dose 

 1-3 grs.; #-2 dgms. 



C 6 H 5 . OH. Small, colourless, deliquescent crystals; odour character- 

 istic; taste sweet and pungent; with a caustic action on the skin and mu- 

 cous membranes, turning them white. Soluble in alcohol, ether, chloroform 

 glycerin, fats, oils and solutions of alkalies; liquified by 10% of water, 



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