210 Van Xiim, and Bosworth — I{<tlci< of Solution of 



affecting the results a portion of about 200 grams was sub- 

 jected to two successive distillations in a current of hydrogen, 

 but the redistil led metal showed on trial no perceptible differ- 

 ence in behavior from the original sample. Thereafter the 

 Kahlbaum cadmium was used without further attempt at 

 purification. 



In Table I are the results of sixteen duplicate experiments 

 with cadmium, the first six recorded in detail. No corrections 

 for variations in the rate of stirring have been applied in this 

 series. The volumes of the solution are given for experiment 

 1 only, but the same values apply to all the experiments of 



Table I. 



Metal : Cadmium. Stirring, 170 revs. Temperature 25". 



KI 0-5 normal. H 2 S0 4 0-02 normal. ' 



1. v = 580 560 540 520 500 480" 

 At- 10 10 10 12 11 10 ml " 



c = 19-76 17-58 15-58 1374 11-79 10-11 8"78 



K= 6-78 6-75 678 663 6-97 6-77 Average, 678 



2. At= 11 10 11 10 10 10 



c = 20-01 17-70 15-76 13-77 12-21 10-68 9-33 



K= 6-45 6-49 6-63 (6-24) 6'68 6-48 Av. 655 



3. At= 10 10 10 10 10 10 



c = 20-13 17-92 15-93 14'05 12-39 10"80 9-36 



K= 6-74 6-58 6 77 6-53 6-87 6-86 Av. 673 



4. A^= 10 10 10 10 10 10 



c - 21-46 19-11 16-90 14-94 13'13 11-45 9-92 



K= 6-71 6-88 6-64 G71 6-84 6-88 Av. 678 



5. At= 10 10 11 11 10 10 



c = 19-52 17-34 15-37 13-33 11-42 1000 868 



K = 6-87 6-74 6-99 (7-29) 6-63 6-79 Av 680 



6. At- 10 10 10 10 10 10 



c = 18-81 16-73 14-81 13-11 11-53 10-10 8-80 



K= 6-79 6-81 6-58 6-67 6-61 6"61 Av. 6*68 



7. K= 6-80 6-81 668 6-59 6-79 662 Av. 672 



8. K= 6-66 6-90 6-76 6-77 6-79 6-66 Av. 676 



9. K= 6-56 6-70 6-72 6"52 6-88 6-52 Av. 665 



10. K= 6-46 6-44 6"48 6-49 6-52 6 64 Av. 6 51 



11. K= 6-80 6-77 6-72 6"85 701 6-79 Av. 6"82 



12. K= 6-59 6-85 6-88 6-65 7"04 6"64 Av. 678 



13. K= 652 669 673 653 679 667 Av. 6 66 



14. K= 6-64 6-98 6'85 676 6-88 6-7.0 Av. 6'80 



15. K= 671 6-68 6"78 6-67 7-00 6-68 Av. 675 



16. K= 656 6-77 6-82 649 6-90 657 Av. 6'69 



Average of all, 672 



