34) CRANIUM, ANTIMONY, CHROMIUM, &c. 



Muriatic acid . 0-3075 



Peroxide of uranium 0-8346 



Potash . . 0-2606 



Water . 0-0973 



1-5000 



I examined this salt with a good deal of care, 

 and though, owing to an accident, I cannot state 

 the result of my analysis, yet I satisfied myself 

 that it exactly resembled the potash-sulphate of 

 uranium in its constitution, that is to say, that it 

 was a compound of 1 atom muriate of potash, 

 and 1 atom of sesquimuriate of uranium, and 

 without any sensible portion of water. Now, 

 the preceding analysis of Berzelius comes ex- 

 ceedingly near mine, as will be evident from the 

 following observations. The muriatic acid united 

 to 0-2602 potash, must have been 0-20057 ; for 



6 (the atom of potash) ; 4-625 (the atom of muriatic acid) 

 : : 0-2602 : 0-20057- 



Consequently, there remains 0-20743 muriatic 

 acid to saturate 0-85 peroxide of uranium. Now, 

 if muriatic acid be to the oxide in the proportion 

 of 1J- atom to 1 atom, an atom of peroxide of 

 uranium will weigh 28-43 ; for 



0-20743 : 0-85 : : 6-Q375 (l atom muriatic acid) : 28-43. 



I consider the analysis of Berzelius, therefore, to 



