Iron Oxide (Fe3O4) Micron Powder, Purity: 99.9+%, Size: -325 mesh

Description

Iron Oxide (Fe₃O₄) Micron Powder, Purity: 99.9+%, Size: -325 mesh

Product Description:
Iron Oxide (Fe₃O₄) Micron Powder with ultra-high purity of 99.9+% and particle size under 325 mesh offers exceptional performance in a wide range of advanced material applications. Known as magnetite, Fe₃O₄ is a naturally occurring iron oxide that exhibits ferrimagnetic behavior, high thermal stability, and strong chemical resistance. The finely divided powder form enhances surface reactivity, homogeneity in dispersions, and precision in engineering formulations.

The -325 mesh size (approx. < 44 µm) ensures excellent uniformity for integration into systems requiring fine magnetic powders, such as magnetorheological fluids, ceramic magnetic composites, MRI-compatible formulations, and soft magnetic materials. Its inverse spinel crystal structure enables both electronic and ionic conduction, making Fe₃O₄ ideal for applications in catalysis, electromagnetic shielding, and energy storage technologies.

With superior magnetization characteristics and excellent compatibility with polymers, resins, and ceramics, this micron powder is also suitable for toners, anti-static coatings, smart paints, and sensor materials. The high purity level minimizes the risk of interference from trace contaminants, ensuring consistent results in scientific research, biomedical systems, and industrial synthesis.

Technical Properties:

• Chemical Formula: Fe₃O₄

• Purity: 99.9+%

• Particle Size: -325 mesh (< 44 µm)

• Color: Black

• Crystal Structure: Inverse Spinel (Cubic)

• Density: ~5.2 g/cm³

• Melting Point: ~1597 °C

• Magnetic Behavior: Ferrimagnetic

• Electrical Conductivity: Semi-conductive

• CAS Number: 1317-61-9

Key Applications:

• Electronics: Used in ferrite cores, magnetic sensors, and soft magnetic composites

• Biomedical: MRI contrast agents, targeted drug delivery, hyperthermia treatments

• Catalysis: Oxidation/reduction catalyst in fuel cells, gas sensors, and environmental remediation

• Energy Storage: Active material in Li-ion and Na-ion battery electrodes

• Advanced Coatings: Conductive and magnetic coatings, corrosion-resistant paints

• Pigments: Black pigment in ceramics, plastics, inks, and refractory products

• Polishing and Abrasives: Fine particle abrasives for lens polishing and glass smoothing

• Magnetic Fluids: Key component in ferrofluids for damping, sealing, and heat transfer