1. Metal Treatment

• Trivalent Plating: It's a component in trivalent chromium plating, which is an alternative to hexavalent chromium plating, particularly for decorative applications.
• Catalyst Production: It's used in the production of alkali metal-free catalysts, which are essential in various chemical processes.

2. Performance Chemicals

• Lewis Acid Catalyst: CrCl3 acts as a Lewis acid, meaning it can accept an electron pair, making it useful for catalyzing reactions like Friedel-Crafts reactions, which involve the alkylation or acylation of aromatic rings.
• Polymerization Reactions: It can catalyze the polymerization of olefins (like ethylene) and the formation of polyesters and polyamides.
• Organochromium Reagents: CrCl2 is also a precursor for generating organochromium reagents, which are valuable in organic synthesis due to their versatility in reacting with various substrates.
• Nozaki-Hiyama-Kishi Reaction: CrCl2 is a key reagent in this reaction, which is used for forming cyclic compounds.
• Takai Olefination: CrCl2 facilitates the formation of vinyl iodides from aldehydes.
• Catalysis: It acts as a catalyst in various organic reactions, including the reduction of alkenes and alkynes
• Reagent in Synthesis: Used in the synthesis of other chromium compounds and certain pharmaceuticals
• Precursor: Serves as a precursor for synthesizing other inorganic and organometallic chromium complexes

3. Fabric Solutions

• Mordant: Chromium chloride acts as a mordant, meaning it helps dye molecules attach to the fabric fibers. It forms a bridge between the dye and the fabric, making the color more permanent.
• Wool Dyeing: Chromium-based dyes, often derived from chromium chloride, are commonly used for dyeing wool.

4. Pharmaceuticals

• Nutritional supplement: As a nutritional supplement, Chromium (III) Chloride is a vital source of chromium, an essential trace element for carbohydrate, fat, and protein metabolism. Supplements of CrCl₃ help address chromium deficiencies, supporting glucose metabolism and insulin sensitivity.