Type segmentation of the Chemical Grade Aluminum Chloride market distinguishes three primary categories: anhydrous AlCl₃, hydrated AlCl₃·6H₂O, and aqueous solution AlCl₃. The anhydrous form, characterized by its high purity and moisture‑sensitivity, dominates applications requiring precise stoichiometry, such as advanced catalysis, and therefore accounts for roughly 55 % of total market volume. Hydrated aluminum chloride, produced through controlled hydrolysis, offers greater handling safety and is preferred in polymer synthesis and certain pharmaceutical processes, contributing about 30 % of sales. The aqueous solution variant, typically supplied at concentrations of 20‑30 % w/w, is favored for large‑scale water‑treatment and metal‑finishing operations due to lower transportation costs and ease of dosing, representing the remaining 15 % of the market. This Chemical Grade Aluminum Chloride segmentation by type reflects distinct cost structures, logistics considerations, and end‑use performance criteria that collectively shape the overall market size.