40 ^^ SULPHUROUS MINERAL WATERS. 



I am fully sensible, that I have by no means executed the 

 I task, whieh 1 proposed to myself, of charactevizin}^ and ar- 



ranging the vegetable mucilages ; but a particular circum- 

 stance having, for the present, put a stop to my experiments, 

 I was induced to publish this very imperfect attempt, in 

 hopes, that the difficulties being pointed out, some more able 

 hand may endeavour to remove them. 



Liverpool^ Aug. l'2ylS07. 



y. 



Observations on Sulphurous Mineral Waters; 7jy Mr, 

 Westrumb*. 



Sulphurous i-vAR. Westrilmb has examined various sulphurous waters, 

 hidr'uf^hu^"^ and lately those of Eilsen in the county of Schanmbourg, 

 ret of lime. One of the most interesting facets he has observed is, that 

 all stilphuroits waters contain more or less hidrosulphuret 

 of lime. 

 Thp gasses be- '^^ detect this he boiled the mineral water, excluding the 

 ing expelled br contact of attnospheric air, to expel the sulphuretted hidro- 

 shown by sul- g^" g^^ ^"<^ carbonic acid. Into the water thus boiled he 

 phuric, nitric, poured sulphuric acid, when more sulphuretted hidrogen 

 ' gas was evolved, and sulphate of lime was thrown down : 

 fuming nitric acid, which separated from it sulphur : and 

 oxalic acid, which expelled sulphuretted hidrogen, and 

 formed oxalate of lime. The water evaporated in open ves- 

 sels let fall sulphate of lime, and gave out sulphuretted hi- 

 drogen ga.8* 

 M tl d f '^^ ascertain the quantity of sulphuretted hidrogen gas and 



certaining the carbonic acid, Mr. Westrumb proceeded as follows. He in- 

 **hureuld^7ii ^^o^luced the sulphurous watet into a matrass, till it was fil- 

 drogenandcar- led to a certain point, which he marked ; fitted to it a curved 

 fnlhem '"^ «*^ tube, which terminated in a long cylinder ; filled this cylin- 

 der with limewater for the one experiment, and with acetate 

 of lead with excess of acid for the other; luted the apparatus ; 



* Driginally published in Gehleii's new Journal of Chemistry, and 

 abridged by Vogel, Aimales de Chimie, vol, Ixii, p. 183, May, 1807. 



the 



