There are many procedural difficulties in electrolyzing a molten
salt which are following:
- The composition of anion of the molten salt solvent
- The composition of cation of the molten salt solvent
- Solute concentration
- Maintain temperature of the cell
- Maintain Potential of cathode
- Maintain current density of cathode
- the corrosion of cell and electrodes
- Sometimes the hydrolysis of many hygroscopic salts occurs.
- Sometime compounds are highly volatile, or insoluble
cluster-type compounds that rivert intermediate valency state
compounds.
- The total energy and economic process is costly.