THE ACETATES. 



167 



TABLE 96. Ba( UOt 



. 6H 2 O. 



TABLE Q7.Pb(U0 2 )(C,H 3 02)H 2 O. 



TABLE 98. General weighted averages of intervals of absorption series in the spectra of the 



acetates at -185 C. 



Substance. 



Li 



N: 



Na 



M 



K 



2H 2 O... 

 ;)s . 3H2U . 



.7H 2 O 



Interval. 



71.04 

 72.35 

 70.27 

 70.19 

 70.46 

 70.60 

 69.18 

 70.54 

 71.25 



Substance. 



Zn(UO 2 ) 2 (C 2 H 3 O2) 6 - 7H 2 O . 

 Rb UO 2 (C 2 H3O 2 )3 



O /TT/~\ \ //"^ TT /"\ \ (* ' TT f~\ 



oT\\j\J2)'i(\-'itiyJ'i) ori2U . 



Ag UO 2 (C 2 H 3 O 2 ) 3 



Ba(UO 2 ) 2 (C 2 H 3 O 2 )6 - 6H 2 O . 

 Pb(UO 2 )(C 2 H 3 O 2 ) 4 .4H 2 O. 



A.V. interval for all acetates . 



Interval. 



70.77 

 70.78 

 70.11 

 70.01 

 71.36 

 71.21 



70.68 



From the list of general, weighted averages of the intervals for the 

 various salts (tables 97 and 98) it appears that the frequency interval 

 of the single acetates is larger than the general average, corresponding 

 in this respect with the larger interval of their fluorescence spectra, as 

 has been previously noted. The determination of intervals is, however, 

 somewhat less accurate than in the case of the fluorescence bands, 

 and, as in that instance, no difference between various series, or various 

 salts, can be considered as positively established. 



