178 Dr. Tycho E:son Auren on 



values found before of k , r q and i ^ H - /H - ~ I have calculated 



x 1/H O ^ or ^ le ra dicles given in the table below. 



Table VI. 



Absorption coefficients of some frequently-used radicles in 

 relation to the molecular absorption coefficient of water. 



Radicle. I. II. III. IV. 



OH 0-95 0*94 0-92 0*91 



NH 4 080 0-91 1-07 118 



NO, 3-27 3-30 329 324 



SO, 11-57 10-57 9-46 8-26 



From the observed values for tf^m- q i 11 the compounds 

 examined have been deduced the above values, when 

 with the respective elements the mentioned radicles have 

 been allied, or when other radicles have been allied, 

 the values in tli3 following table : — 



Table VII. 



Atomic absorption coefficients in relation to the 

 molecular absorption coefficient of water. 



Atomic 



number. 



Z. 



t-h , Substance 



Element. • -, 



examined. 



I. 



II. 



III. 



IV. 



1 



H 



(Table II.) 



. 0-052 



0061 



0-078 



0-094 



3 



Li 



LiOH 



. 0-27 

 . 0-16 



0-29 

 0-24 



0-30 

 0-30 



0-30 





LiN0 3 



Mean 



037 





. 0-21 



0-26 



0-30 



0-33 



4 



Be 



Be(NO Q ), 



. 0-31 



0-32 



0-42 



0-56 



5 



B 



B 2 0. 3 (solution in "1 q.^q 

 meth. alcohol) J 



049 



0-56 



060 



6 



O 



(Table III.) 



. 0-46 



0-49 



0-51 



0-53 



7 



N 



(Table V.) 



. 0-59 



0-67 



0-76 



0-80 



8 



o 



(Table II.) 



0-90 



0-88 



0-84 



081 



9 



F 



Na 

 Mg 



c g h 5 f. 



1-43 



2-16 



2-73 



2-48 



1-35 



2-01 



2-26 

 2-36 



1-29 



1-87 



2-26 

 1-86 



1-14 



11 



NaOH 



1-66 



12 



MgS0 4 



Mg(N0 8 ) 2 



1-77 

 1-58 



Mean 2-60 2*31 206 L67 



