ABSTRACT
K J ·o E Figure 3. Electrolysis cell, A. B, fritted glass disks; C, electrolytic junction between solution and reference electrode; D, platinum grid; E, magnetic stirrer (in Teflon); F, Teflon gasket; G, Torion stopper, H, glass tube; J, ground glass surfaces; K, locking screw; L, bubbler, (From Ref. 48.)
especially with a mercury electrode with which the condition of parallel electrode surfaces of same area is not easily fulfilled. A good approach has been given by Moinet and Peltier [8], and a schematic representation of the construction is shown in Fig. 4. Special attention has been paid to the problem of renewing the mercury electrode surface with minimal variation in the distance to the reference electrode. This has been done by stirring at moderate speed with a magnetic mounted on a Teflon cross turning on a short axis centered at the bottom of the vessel. Good thermal stability is secured by a cooling coil through the anode compartment connected in series with the outer bath. The cells have been proved to work satisfactorily with currents up to 3 A in a well-conducting aqueous medium. A cell for preparative electrolyses on a 0.1-1 mol scale with anolyte flow has been described [50].
