CADET S FUMING LIQUOR. f) 



rating from an oil, which was afterwards feen fwimming oil 

 the fur face of the liquor. This contained a great deal of 

 acetous acid. Its decomposition may be further facilitated 

 by expofing it to the air; then it emits thick vapours, it is 

 cryfiallized, and becomes flightly humid. It is rendered tur- 

 bid by lime-water, and yields a yellow precipitate with ful- 

 phurated hidrogen. 



From thefe different experiments it follows, (hat this liquor Compo/ltion of 



is compofed of oil, acetous acid, and arfenic, nearly in a me- tne heavieft h- 



... . . J quor. 



tallic dale; and that it mufi be confulered as a fpecies of 



foap, with a bale of acid and arfenic, or as a fort of olco- 



arfenical acelite. 



This analyfis was very ufeful in that of the upper liquor. The upper fluid 



In fact, notwilhfianding the difference which feerhs (o cxifi f iff -" rs '''^ ^ hc ' 



° . lowerj only by 



between them, fince the latter refembles water, can combine having a larger 

 with it in all proportions, forms only a flight cloud in the a;- P ro P uvl:;on of 



c - . , , • ■ , , i . •„ ■ n acetous acid and 



movphere, has much ieis odour, and noes not inflame m any water. 



cafe, it is eafy to prove that it only differs from the firfr by its 

 greater proportion of acetous acid, and by the water which it 

 contains; for it reddens the tincture of turnfole flrongly, effer- 

 vefceswilh the carbonates, gives rife (o acetiles, and is flightly 

 precipitated of a yellow colour by fulphurated hidrogen, which 

 feparates a little oil from it. A very fmajl quantity of oxigen- 

 ated muriatic acid fpeedily dedroys the odour, and it is then 

 precipitated white by iime-water, and of a deep yellow by 

 the hidro-fulphurets. Expofure to the air produces in it, by 

 time, the fame changes as take place immediately with ox- 

 igenated muriatic acid. Finally, a liquor, exactly fimilar, is 

 formed by difibiving a few drops of the lower liquor in very 

 weak vinegar, and thus fy nthe.fi s confirms the refults of 

 analyfis. 



We can now efiablifh a theory, clear of all hypolhefis, en Theory of the 

 the phenomena offered by the difrillation of acetite of potafh procels. 

 and arfenious acid ; we fee that one part of lie arfenious acid 

 .is entirely reduced ; that another is only brought near the me- 

 tallic ftate; that the acetite of potafh is totally decompcled ; 

 that almoft all the acetous acid is alfo decornpjoled ; and, that Component parts 

 from thefe different decompofitions refult water, carbonated °/ the fu JnIng 

 hidrogen, arfeniated hidrogen, carbonic acid, a peculiar oil, 

 oxide of arfenic, arfenic, and poiaih ; that the potafh forms 

 the white refidue found in the vefiels in which the ditii Nation 



was 



