Linked from
The 12 pages that link to Chlor-alkali process, each with the reason it gives.
ChlorineBroader topic: This process is the principal industrial route for making elemental chlorine.
SaltRelated: Electrolyzed salt brine supplies three major industrial chemicals.
HaliteRelated: Halite supplies the sodium chloride dissolved to make the process’s brine.
CathodeRelated: Water reduction at the cathode commonly produces hydrogen and hydroxide ions.
Salt miningRelated: Salt mined as rock or brine supplies the feedstock for this chemical industry.