Instead, one of the electrodes dipped into the calcium chloride is made of solid titanium dioxide.

ECONOMIST: Dr Chen and the philosopher��s stone

Past attempts, however, have relied on dissolving the tetrachloride (or sometimes the dioxide) into the molten calcium chloride.

ECONOMIST: Dr Chen and the philosopher��s stone

For the electrolysis of titanium dioxide, the preferred electrolyte is molten calcium chloride.

ECONOMIST: Dr Chen and the philosopher��s stone