VI. METALS.— Oxides of. 241 



Xeep regulus of antimony melted in vessels Avhich admit the air, 

 but prevent the escape of the flowers, and afford them a cool 

 place on which they may settle. 



Glass of antimony, J'itrum antimojiii, Antimonium vitrifac- 

 turn, Oxidum aiitimonii cum sulphure vitrificatum. Roast pow- 

 dered common antimony in a shallow vessel over a gentle fire, till 

 it is of a whitish grey, and emits no fumes in a red heat, then melt 

 it in a quick fire into a clean brownish-red glass. If the antimony 

 has been calcined too much, it will require a litfle common anti- 

 mony to be added to render it transparent : composed of eight 

 parts of protoxide, united with one of common antimony ; violently 

 emetic, in doses of gr. j to ij, and very uncertain in its operation ; 

 used in making antimonial wine and emetic tartar. 



Liver of antimony, Hejmr antimonii. Roast common 

 antimony to a dull grey, and melt it; 85. Sd, the lb. 



Crocus metallorum, Crocus antimonii, P. L. 1745. Com- 

 mon antimony and saltpetre, ana, equal weights ; mix and melt. 



Crocus antimonii, P. L. 1788. Calx antimonii illota. Com- 

 mon antimony and saltpetre, of each lib., common salt loz. ; mix 

 and melt. 



Panacea antimonii. Sulphuret of antimony 5VJ, nitre Sx, 

 common salt .^jss, charcoal dust 5j ; mix in fine powder, throw 

 into a red-hot crucible, and keep it in the fire for a quarter of an 

 hour, take the crucible out and let it cool, break it carefully, 

 separate the uppermost spongy scoria, powder and wash it : when 

 washed it should be of a fine golden colour. This panacea is the 

 basis of Lockyer^'s pills. 



Crocus ANTiMONirLoxos, Oxidum antimonii cum sulphure per 

 nitratem potasscn. Common antimony and sahpetre, of each equal 

 weights ; mix and melt, pour out, separate the reddish part from 

 the whitish crust, reduce the former to powder, and wash it as 

 long a^ it communicates any taste to the water. 



These four preparations are emetic, in doses of gr. ij to viij, 

 but uncertain ana sometimes violent ; used for making emetic 

 wine, &c., and a purge for cattle : the yellowish-red varieties con- 

 tain four parts of protoxide and one of antimony ; the dark-red 

 two parts of protoxide to one of antimony. 



Purging antimony, Antimonium cntharticnm. Glass of anti- 

 mony 4oz., oil of vitriol 12oz., digest two days, distil to dryness, 

 wash the residue, and add to it as much Glauber's salt, and twice 

 as niuch sal cnixuni ; melt together, powder, and wash : the most 

 certain of all the antimonial purges, gr. ij to 3ss. Used now in 

 IODIC nostrum. 



Scuwanbero^s fever powder. Common antimony lib., heat 



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