with M.Debuc's 

 ipodifications* 



44' AlCETic acid. 



fas m ftrcngth ' 3. That in many cafes this acid may be fubftituted for ox?< 

 mon kl'ndr'"" '""'"'^t'C acid, as an obje6t of falubriety without poffeffing its 

 Slid may be fub- inconveniencics. 

 ftitutcd for oxi- xhe reporters repeated the procefs of M. Badollier with the 



muriatic acid, • i r . 



ill fome cafes to modihcations adviled by M, Debuc as folJows. 

 advantage. They introduced a mixture of two pounds of fulphate of 



The reporters ^ j^ir • ,- ,.,.. .,. 



repeat M.Ba- c^PP^^ ana "le (ame quantity of acetate of lead into a glafs 



doiiier's procefs, retort, placed it on a fand bath, and adiufled to it a tubulated 

 receiver, which communicated with two bottles of a Wolf's 

 apparatus ; the firft of which contained diftilled water, and 

 the fecond many pounds of lime water ; from this laft a lube 

 was pafled underneath a jar in an hydro-pneumatic apparatus : 

 the retort was heated gradually to tiie end of the operation, 

 which lafted more than 10 hours j and the following produfts 

 were drawn from the receiver. 



1. Eight ounces of a liquor fjmilar to diftjlled vinegar, but 

 with a lefs agreeable- odour, 



2. Ten ounces of a liquor with an unpleafing odour of acetic 

 acid, more penetrating than the firft, and not containing any 

 trace of fulphuroiis or fulphuric acids. 



3. Finally kven ounces of a liquor of great limpidity, with 

 a very pungent odour of fu'phurous acetic acid, and which di4 

 rot precipitate muriate of barytes. 



A confiderable difengagement of an elaftic fluid was oh. 

 ferved, which became perceptible as foon as the retort began 

 to run, and which lafted during the whole operation. 



This gafeous fluid was abforbed almoft totally by the lime 

 water, forming with it a very abundant white precipitate, 

 which, gathered on a tilter, and dried, proved to be carbonate 

 of lime : It weighed two hundred and fifty grains, which made 

 the carbonic acid equal, according to the known proportions 

 of this fubfiance, to eighly-fn-e grains; atmofpheric acid alone 

 palTed under the jar mixed with fome carbonic acid gas : no 

 trace was perceived of hydrogen gas. 



Many layers of different colours were found in the retort. 

 . The firfl was of a beautiful green, furrouuded with a circle 

 of yellowifli white towards the fides. 



The fecond, much more thick, was of a red colour, greatly 

 like copper in very fmall particles. 



The third was a mixture of fulphate of lead and of copper 

 apparently in the metallic flate. 



The 



