Used primarily in chrome plating processes to provide a hard, corrosion-resistant surface on metals. It serves as an oxidizing agent in various industrial cleaning solutions and metal treatment baths. Commonly applied in the production of other chromium compounds and in catalysis for organic synthesis, such as the oxidation of alcohols to carbonyl compounds (e.g., primary alcohols to aldehydes or ketones). Also utilized in the tanning of leather to improve durability and resistance to microbial attack. Due to its strong oxidizing properties, it plays a role in the manufacture of dyes, pigments, and certain specialty chemicals.

Safety Note: Chromic trioxide is highly toxic, potentially carcinogenic, and environmentally hazardous. Handle with care and follow strict regulations for use and disposal.