Iron hydroxide oxide is widely used in water treatment processes to remove impurities and contaminants. It acts as an effective adsorbent, helping to eliminate heavy metals, phosphates, and other pollutants from wastewater.

In the medical field, it is utilized in pharmaceuticals as an active ingredient in antacids and iron supplements, aiding in the treatment of iron deficiency and gastrointestinal issues.

Additionally, it is employed in the production of pigments and coatings, providing color stability and corrosion resistance in paints and industrial coatings.

In environmental applications, it is used for soil remediation to immobilize hazardous substances, reducing their bioavailability and preventing contamination of groundwater.

It also finds use in the manufacturing of batteries, particularly in nickel-iron batteries, due to its electrochemical properties.

Lastly, it serves as a catalyst in various chemical reactions, enhancing the efficiency of processes in industries such as petrochemicals and organic synthesis.