306 VIII. ACIDS.-SuLPHURic. 



• Steinachers purified nitric acid. Nitric acid 16 oz., litharge 

 2 oz., distil very slowly, leaving about 2 oz. in the retort. 



Henry's nitric acid for assaying, Sp. grav. 1'143; has the 

 same power of saturation as his muriatic acid at 1'074, or sul- 

 phuric acid at 1*135. 



The stronger kinds of this acid are used as a caustic to warts, 

 &c. ; diluted so as not to injure the teeth, viz., of the strong acid 

 gtt. j to X, in a small tumbler of water, is useful in liver com- 

 plaints, lues venerea, nausea from dyspepsia, sea-sickness, &c. ; 

 m the arts, to dissolve metals or cleanse the surfaces. 



LemerTLS solvent for antimony. Spirit of nitre 10 oz., oil of 

 vitriol, muriatic acid, of each 4oz. ; dissolves regulus of antimony 

 and its oxides. 



Aguafortis composita, P. L. 1745. Double aqua fortis 16 oz., 

 common salt ^ ; distil to dryness : used to make red precipitate, 

 and cause the scaly appearance. 



Dyers aqua fortis. Nitric acid perfectly freed from nitrous 

 / gas, sp. gr. rit, lOOlb. ; muriatic acid sp. gr. 1*19, 5lb. ; mix: 

 dissolves tin without oxidizing it. 



Spiritus nitri bezoardicus. Precipitate butter of antimony by 

 sp. nitre, and distil off the acid. 



Aqua regia. Spirit of nitre 16 oz., common salt 4 oz. ; dissolve. 



Aqua regia made loith sal ammoniac. Spirit of nitre 16 oz., 

 sal ammoniac 4 oz. ; dissolve : very expensive, and difficult to 

 keep. 



NiTRo-MURiATic ACID, HydrocMoronitric acid. Nitric acid 

 at 33 deg. Baume lib., muriatic acid at 20 deg. 31b. ; mix. All 

 are used to dissolve gold and platinum. 



AciDUM NiTRO-MURiATicuM DiLUTUM. Acidi nitrici, Acidi 

 muriatici, sing. Oss. Aquce distillate Oj. For the nitro-muriatic 

 acid wash, or bath ; three ounces of this acid being required to 

 every gallon of the water for the bath, but double this quantity 

 when used as a wash or lotion. In affections of the liver, and for 

 internal obstructions. 



Liquid Chlorine, Oxymuriatic acid, Dephlogisticated spirit 

 of salt, Acidum oxymuriaticum. Aqua oxymuriatica, Chlorum aqua 

 solutum. Common salt 31b., manganese lib., oil of vitriol l^lb., 

 water lib. : distil, and pass the vapour through 3 or 4 bottles half 

 filled with water ; pale greenish yellow, scarcely heavier than 

 water; used in syphilis and scarlatina, 3ss to iij, in water 5viii, 

 taken, by small doses, in a day : bleaches linen, straw, and takes 

 out fruit spots, iron moulds, or ink marks. 



