Magnetite electrical conductor

The advantage of the magnetite electrodes lies in the fact that it is possible to electrolyse at an elevated temperature of 70 to 80 °C, which considerably accelerates the chemical oxidation of hypochlorite, and so indirectly increases the current efficiency. However, magnetite electrodes are brittle, their electrical conductivity is low and they do not permit to use current density which exceeds 2 to 3 A per sq. dm. Magnetite electrodes are either in the form of hollow bars or tiles, which are closed at the bottom and electroplated inside with copper. Copper increases the conductivity of the electrode and enables current conductors to be soldered to the top of it without any difficulty. The current efficiency obtained with magnetite electrodes reaches 86 to 90 p. c., and... 

---