OBSERVATIONS ON MURIATIC ACID. ] 7,9 



I precipitated, by nitrate of filver, 400 grains of the entire The firft liquor 

 liquor, previoufly to its being evaporated j and obtained 71 %"$™jjtfffi 

 grains of muriate of filven fliver; 



I evaporated to drynefs, 400 grains Of the fame liquor, redif- and afforded the 

 folved the refiduum, and, by dropping in nitrate of filver, ob- ( o]ut -J n u of t " e 

 tained 70 grains of muriate. The difference of one grain, in inthe fait. 

 thefe experiments, does not amount to 0,2 of a grain of muriate 

 of filver ; and ought not to be regarded. 



From thefe experiments it is pad all doubt, that the original Hence the firft 

 intire liquor did not contain oxigenized muriate of potafli. tontI\no\\T m. 

 For, if fuch a combination had exifted in it, I ftiould have of potafli; but 

 obtained a finaller portion of muriate of filver in the firft than^two diftintt 

 in the fecond cafe, on account of the total feparation into 

 muriate and hyperoxigenized muriate having not yet taken 

 place. 



We are not however to conclude, from thefe experiments, Yet It Is poffiblc 

 that there are no fuoh things as oxigenized muriates. Although ^ u °i r ^ Xlg ' 

 they cannot be exhibited in a palpable ftate, it is eafy to de- 

 monftrate that they do really exift. I (hall prove, in the pro- for example, of 

 per. place, that hyperoxigenized muriate of ammonia is no t ammonia * 

 an incompatible combination ; and muft, for the prefent, af- 

 fume the datum, in order that I may demonftrate the neceflary 

 exilience of oxigenized muriates. Therefore: If muriatic 

 acid, or if hyperoxigenized muriatic acid, be brought in con- 

 tact with ammonia, the refult will be muriate, or hyperoxigen- 

 ized muriate, of ammonia. But, if the acid, difengaged by For the oxigen- 



fulphuric acid, from a mixture of black oxide of manganefe ,zed a " d cande " 



, r r * r i compofe ammo- 



and muriate of foda, be fent through ammonia, both are decom- nia, and the hy- 



pofed. Hence it is evident, that the acid combines with the P erox - m. acid 



alkalis, in the ftate of oxigenized muriatic acid ; and that the t h; s j a ft J oes j n 



feparation into muriate and hyperoxigenized muriate, is pro- **&> form a fait 



duced by a fubfequent action, among the elements of oxigen- e»peiimcat * 



ized muriate of potafli. - i 



Upon the whole, it appears to me fair to conclude, 



\Jl,, That the falts of this genus do really exift,. previous to 



the formation of hyperoxigenized muriate of potafli. \ 



2d, That the affinity exercifed by hyperoxigenized muriatic Confequently 



acid for ammonia, and (by very ftrong analogy) for the other ^ CTt rnuft .^ ave 



bates, is much greater -than that of oxigenized muriatic acid, muriate firft,'and 



For, hyperoxigenized muriatic acid, as fliall prefently be ftiewn, t! ; i!S was imme * 



having a much more powerful a&ion upon all combuftible ft ronge ' r affinity, 



N ( 2 bodies, fucceeded by the 



