between Metals and Dissolved Halogens. 



241 



was then lifted from the mercury, the excess shaken off, and at 

 a definitely noted time inserted in the liquid. Exactly at the 

 end of the chosen time interval the disk was removed from the 

 solution, rinsed with water and again inserted in the mercury, 

 and another sample of the solution taken for titration as before. 

 This cycle of operations was repeated as often as desired, or 



Table I. 

 Eate of Solution of Mercury in Iodine at 25 c 



c 



At 



V 



K 



c 



At 



V 



K 



1. 100 g. 



KI per 



liter. r— 



170 



2. 100 g. 



KI per 



liter, r— 



.-240 



0-0381 

 0-0356 

 0-0328 

 0-0304 

 0-0279 

 00257 

 0-0236 



5 



6 



5-3 



5-7 



5 



5 



500 

 480 

 460 

 440 

 420 

 400 

 380 



6-51 

 630 

 6-36 

 625 

 6 55 

 6-59 



0-0378 

 0-0315 

 0-0260 

 0-0213 

 0-0172 

 0-0138 

 0-0109 



10 

 10 

 10 

 10 

 10 

 10 



500 

 480 

 460 

 440 

 420 

 400 

 380 



8-71 

 8-83 

 8-82 

 8-79 

 8-87 

 8-84 







Average 



6-43 







Average 



8-81 



3. 200 g. 



KI per 



liter. r= 



170 



4. 200 g. 



KI per 



liter. r=210 



0-0343 

 0-0319 

 0-0274 

 0-0233 

 0-0197 



5 



10 

 10 

 10 

 10 



510 

 490 

 470 

 450 

 430 



(6-92) 

 7-13 

 723 

 7-26 

 7-20 



0-0283 

 0-0238 

 0-0198 

 0-0163 

 00134 



10 

 10 

 10 

 10 



7 



510 8-49 

 490 Hi 



470 l.ti 



til 8-2 



410 »* 



0-0165 



410 



0-0116 







Average 



7-21 







Average 8*54 



5. 200 g. KI per liter. 



0-0372 

 0-0305 

 0-0248 

 0-0199 

 0-0158 

 0-0125 

 0*00973 



10 

 10 

 10 

 10 

 10 

 10 



500 

 480 

 460 

 440 

 420 

 400 

 380 



:240 



9-55 

 9-51 

 9-73 

 9-63 

 9-50 

 9-38 



Average 9 55 



200 g. KI per liter. 



0-0346 



0-0276 



0-0211 



0-0165 



0-0127 



0-00984 



0-00751 



10 

 10 

 10 

 10 

 10 

 10 



520 

 500 

 480 

 460 

 440 

 420 

 400 



=300 



11-33 



(12-92) 

 11-34 

 11-31 

 10-82 

 10-82 



Average 11 *12 



7. 400 g. 



KI per 



liter. r= 



:170 



8. 400 g. 



KI per 



liter, r 



= 240 



0-0332 

 0-0282 

 0-0236 

 0-0197 

 0-0162 

 0-0132 

 0-01057 



10 

 10 

 10 

 10 

 10 

 10 



•500 

 480 

 460 

 440 

 420 

 400 

 380 



Average 



792 



8-10 

 8-02 

 8-25 

 8-14 

 8-39 



8-14 



0-0439 

 0-0350 

 0-0276 

 0-0219 

 0-0171 

 00131 



o-oioo 



0-00672 



10 

 10 

 10 

 10 

 10 

 10 

 14 



500 

 480 

 460 

 440 

 420 

 400 

 380 

 360 



Average 



10-78 

 10-43 

 10-61 

 10-52 

 10-48 

 10-30 

 10-23 



10-48 



