ACTION OF SULPHUR ON CHARCOAL* S.$ 



stance, but rather that it dejives its origin from the sulphut 



itself. 



Messrs. Westrumb and Basse intend to pursue the inquiry, The inquiry 



and promise to make known the results, ^'•^ ^^ P^J^r 



^ sued. 



VI. 



Report on a Memoir of Mr. Berthoi.let, Jmm., entitled: 

 Inquiries concerning the reciprocal Action of Sulphur and 

 Charcoal; hu Messrs, Fourcroy, Deyeux, and Vaut 



QUELIN*. 



JLN 1796 prof*. Lampadius, of Freyberg, endeavouring to Lampadlus's 



ascertain how much sulphur a martial pyrites mixed with sulphur alco- 



charcoal would furnish when acted upon by fire, obtained a 



very volatile sulphurous liquid, which he suspected to be a 



compound of sulphur and hidrogen, and to which he after- hidroguretted 



ward gave the name of sulphur alcohol. sulphur. 



Clement and Desormes, unacquainted with this fact, when ^ , , 



» afterward endeavouring to demonstrate, that there is no hi- sulphur of CleV 



c hogen in well burned charcoal, by passing sulphur in va- "™^"^ ^"'^ " 



, r ,•• , , • 1 1 t' ■• i sornies. 



p. our 'over very hot charcoal, obtained a product exactly si- 



m ilar to that 6^ Lampadius. Having remarked, that the 



ch arcoal in this operation was desti-^ye'd without evolving 



anj ' gas; and that the liquid product, when burned, left 



sora e slight black spots on the vessel that contained it; 



thej ' thought, that this liquor was formed hj the combination 



of su Iphur with charcoal, and consequently termed it carbu- 



retted sulphur. 



Thi's diiference of opinion respecting its composition in- Examined by 

 duced Mr. A. B. BerthoUet," to examine experimentally this Berthoile!,jun, 

 -question, with which rtiany interesting points in chemistry 

 are conn ected. 



His ap 'paratus, which does not differ much from that of 

 Clement and Desormes, was constructed in the following |^^T.li'!!°r. ^^ 



o nib ^pp^rdlU::. 



manner. A straight glass tube, about a yard long, was 



Aiiiiales de Chemie, Vol. LXI, p. 127. Feb. 1807. 



placed 



