Chromium (III) hydroxide n-hydrate is widely used in various industrial and environmental applications. It serves as a key component in the production of pigments, particularly in the manufacturing of green and yellow colors for paints, coatings, and plastics. Its stability and non-toxic nature make it suitable for use in cosmetics and personal care products, such as eyeshadows and nail polishes, where it acts as a colorant.

In wastewater treatment, it is employed as a coagulant to remove impurities and heavy metals from water, aiding in the purification process. Additionally, it is utilized in the synthesis of other chromium compounds, which are essential in catalysts, ceramics, and glass production. Its ability to act as a corrosion inhibitor also makes it valuable in protective coatings for metals, extending their lifespan in harsh environments.