AuCl3

Gold chloride (AuCl3) is an inorganic compound and gold-containing chemical reagent, not a structural engineering material in the conventional sense. It is primarily used as a precursor in synthesis routes for gold nanoparticles, thin films, and catalytic materials, as well as in electroplating and chemical etching processes where gold deposition or surface modification is required. Engineers and materials scientists select AuCl3 for its role as a controlled source of gold in nanomaterials fabrication and surface treatment applications, where fine control over composition and particle size is critical.