74 



ABSORPTION SPECTRA OF A NUMBER OF SALTS 

 NEODYMIUM ACETATE. 



Table 15 gives the results obtained for solutions of neodymium acetate in 

 water. The concentrations, reading from left to right, were 0.(517, 0.308, 

 0.154, and 0.077 normal, respectively, the corresponding depths of absorbing 



100 



o 



m 



75 



UJ 



a 



| 50 



UJ 



Q. 



25 



0.65/; 



Neodymium Acetate 



Cell Depth 2.5 mm. 

 Concentration 0.6I7N 



0.7a 



0.75/7 



0.8/7 



Fig. 30. 



0.85/7 



0.9/7 



0.95/7 



100 



75 



o 



50 





UJ 



o 



UJ 



0. 



25 



0.65/z 



0.7/7 



0.75// 



Fig. 31. 



Neodymium Acetate 



Cell Depth 5 mm 

 Concentration 0308N 



0.85," 



0.9/7 



0.95/7 



layer being 2.5, 5, 10, and 20 mm., respectively. The results in this table 

 are plotted in figs. 30 to 33, inclusive. The percentage transmission and 

 wave-lengths are represented, respectively, by the ordinates and abscissae of 

 the curves. 



