££) 'PROPERTY OF CAMPHORATED WAT; (Jb 



water without leaving any residuum. The latter solution 

 yielded a precipitate both with sulphuric and with carbonic 

 acid. 

 Occasioned by From these observations it was easy to explain the separa- 

 the phial " t * on °^ tae bidrogtaretted sulphuretof barytes into pure ba- 

 rytes and sulphuretted sulphite. The oxigen contained in 

 the pliial, being absorbed by the sulphuret, formed water 

 and sulphurous acid : but the quantity of oxigen being in- 

 sufficient, to convert all the sulphuret into sulphite, the 

 consequence was, that the portion of sulphite which was 

 formed sulphuretted itself at the expense of the undecorn- 

 posed sulphuret, and left its base free. The sulphuretted 

 sulphite, being less soluble than the barytes, of course 

 crystallized first. 

 I liclro«u rotted Hence we conclude, that the absorption of oxigen gas by 

 sulphurets,ab- hidroguretted sulphurets never produces immediately a sul- 

 nfi always pnate, but a sulphite, notwithstanding the great affinity of 

 iormsulpliites. the base for sulphuric acid ; as Mr. Berthollet has explained 

 Sulphite of ba- J n hi s Memoir on sulphuretted hidrogen: and that the affi- 

 phur from ba- n,t y °* sulphite of barytes for sulphur is greater, than that 

 fy:es« of barytes for the same substance. 



IX. 



Remark on a Property of Camphorated Water : by C. A* 

 Cadet, Apothecary in ordinary to his Majesty*. 



Carbonic acid ■*■*• Surgeon at a lad rid announced three years ago, that 

 said to piomote carbonic acid promoted the solution of camphor in water, 

 camphorTn an< * ^ at * ms water na d ver .V decided medicinal properties in 

 watef, disorders of the bladder. Leaving to the physician to deter- 



mine the value of the medicine, I have attempted merely to 

 confirm the chemical fact. 



For this purpose 1 made a solution of camphor in distil- 



^ c-^i- i \ led water, and another in water saturated with carbonic acid 

 evolved j- 6 y-» 



aerated water after Mr. Paul's method, in order to compare the quantities 

 **< T?Vr of camphor dissolved. I weighed the camphor before and 



• AnnaksdeChimie, vol. LX1I, p. 133, May, 1807. 



lifter 



