COMBINATION OF MERCURY 



net, which has thrown light upon a fubjeft by 

 no means certain, at Icail not attempted by any 

 one. . 



iv. The various ProceJJts by which Corro- 

 Jive Mercurial Sublimate Is prepared. I. 

 The Mixture of Bodies containing Mercury and 

 Muriatic Acid. 



CHEMISTS have preferred various meafures in 

 the preparation of corrofive fublimute. Thefc 

 can, however, be referred to four kinds only, 

 and of which we Ihail now proceed to give ionic 

 explanation. 



I. The admixture of bodies containing mer- 

 cury and muriatic acid. Lemery, Senior, was 

 the firfl who followed this method, and of which 

 he has given an account to the Pariilan academy *. 

 He mixed together by friclion four ounces of 

 mercury, and as many of dried fait, and after 

 he had expofed the mafs to the fire for four hours, 

 he obtained four ounces of a^ialt in all refpecls 

 iimilar to corroiive fublimute ; at leail all the 

 dilference that was found between them was, 

 that this preparation was of a darker colour, a 

 texture lefs cryfhilline, and of a milder nature. 



I cannot help observing in this place, Jit, 

 That the procefs of extinguifliing mercury com- 

 pletely by trituration with common fait, is ex- 

 ceedingly 



* Mem. dc TAcad. R. dcf Sc. .deParu, a. 1709. 



