Carbonyl iron powder is widely used in the production of soft magnetic components due to its high purity and uniform particle size. It serves as a key material in the manufacturing of electromagnetic cores, inductors, and transformers, especially in high-frequency applications where low core loss and high magnetic permeability are essential. Its excellent compaction properties make it ideal for powder metallurgy parts used in automotive and industrial equipment. In the electronics industry, it is used in electromagnetic interference (EMI) suppression components, such as chip beads and noise filters, where it helps absorb unwanted high-frequency signals. It is also employed in microwave absorbers and radar-absorbing materials for defense and telecommunications applications. In the medical field, carbonyl iron powder is used as a source of elemental iron in certain pharmaceutical formulations and nutritional supplements, due to its controlled release and high bioavailability. Additionally, it finds use in some diagnostic procedures and contrast agents. It is also utilized in specialty coatings and polymer composites to enhance magnetic properties, and in the production of ferrofluids for seals, dampers, and sensors. Its fine particle size and spherical morphology contribute to smooth dispersion and performance in such systems.