844 



Voltaic Electricity. Section 5: Electrochemistry. 



N.I. 62216 



62216. 1:3. 



62 217. 1 : :s. 



62 221. 



62 218. 1 : 10. 



62220. 1 : 11. 



62 225. 1 : 10. 



62.216. Apparatus for Objectively Demonstrating Electrolytic Decompositions and Crystalli- 

 zations, Figure (M. P., 9 th Edn., Ill, Fig. 45!)) 0.14.0 



62.217. Saturn's Tree Inset for above, Figure (M. P., 9 th Edn., Ill, Fig. 460) .... 0. 4. 



62.218. V-shaped Glass Tube with Platinum Electrode and stand, Figure (M. P., 9 th Edn., 



III, Fig. 458) 0. IS. o 



62.219. Electrolytic Apparatus after Griiusehl, with gas conduit tubes, for small currents 

 (/tschr. f. d. phys. 11. chem. I*. 16, 1903, p. 162, Figs. 1 and 2), comprising 2 glass bell 

 jars with platinum electrodes and 1 glass bell jar with carbon electrodes and a glass jar 

 in which the glass bells are suspended 



12,220. Demonstration Experiment for Faraday's second Law, as suggested by A. W. Hofmann, 



Figure (M. P.. 9 th Edn., Ill, Fig. 461), consisting of 3 water decomposing apparat uses. 

 one with platinum and the others with carbon electrodes, for decomposing muriatic 

 acid, acidulated water and liquid ammonia 3.1(1.0 



tL'. 221. Demonstration Experiment for Faraday's second Law, F i g u r e. without the ammeter 



illustrated; also without accumulator or current key (M. P., 10'" Edn., IV, 1, Fig. l.V.i) 3. 0. (I 



62,222. U-shaped Decomposing Vessel after (Jrimschl, with water-cooling, for showing that 

 in the electrolysis of dilute sulphuric acid the concentration of acid at the anode con- 

 tinually increases and at the cathode continuously decreases (drimsehl. Fig. 847) . . 0. IS. 



12.22.'!. W-shaped Decomposition Cell after (irimsehl. for showing the migration of sulphuric 



acid from the cathode to the anode (Crimsehl. Fig. S|S) . . . .' 1. (I. (I 



112.221. Sliding Resistance for above, for no volts 1. l.o 



112.225. Apparatus after Nernst for showing the velocity of migration of violet coloured Mn<), 



Ions, Figure (.M. I'.. 10"' Edn.. IV, 1. Fig. 472) ' 1. 4.0 



12,22(1. Apparatus after NYiedciiiann, for the Electrolysis of Salt Solutions and the Migration 



of Ions (.M. P., ll" 1 Edn.. III. Fig. 151) 2.10.0 



cl. :,<<!. 



,3946, 



6884, 



.Mil 



