072 the Alcohol of Sulphur, or Sulphuret of Carbon, 1 85 



(CGI), terminating in a mercurial pneumatic apparatus (H), 

 and having a bulb or expansion (in G), at about half way 

 between its extremities, which bulb was cooled down to about 

 15" Fahrenheit, and kept at that temperature during the ex- 

 periment by means of a mixture of ice and salt. The tube 

 in the stove ( BC ) being now heated to redness, and an ex- 

 tremely gentle degree of heat applied to the retort, the oily 

 liquor distilled slowly through the red hot oxyd of iron, and 

 the whole of the experiment succeeded in a most satisfactory 

 manner ; for we found that the joints of the apparatus had 

 remained perfectly tight during the process, and every ves- 

 tige of the sulphuret of carbon had been decomposed.* We 

 could not perceive in the bulb the least appearance of mois- 

 ture. 



6. The oxyd of iron (the whole weight of which was about 

 ten times that of the oil decomposed), was partly converted 

 into sulphuret of iron, having a yellow colour and a brilliant 

 metallic lustre. This sulphuret was dissolved by nitro-muri- 

 atic acid, and the oxyd of iron was separated by ammonia. 

 The filtered liquid, being neutralized by muriatic acid, was 

 precipitated by muriate of barytes, and the precipitate was well 

 washed, and heated to redness. 



7. During the process of decomposition above related, the 

 mixture of sulphureous acid gas and carbonic acid gas had 

 collected in the receiver (H) placed on the extremity of the 



• The process was so slowly conducted, that it required six hours and a half for the 

 decomposition of about fifteen grains of the oil. The heat applied to the retort was 

 * mercy thut which radiated from a small lamp (F), phced at some distance from it, a 

 screen being inttrri)Ose(l between the furnace and theretoit. in several previous trials, 

 we had faiLd Irom not being sufficiently cautious and gradual in the mode of wurming 

 the retort. 



