Ultra-Pure Magnetic Black Iron Oxide Nanoparticles (Fe3O4) – 20nm Precision Powder for Cutting-Edge Applications

High Purity & Precision
Lab-grade 99.9% pure Fe3O4 nanoparticles with controlled 20nm particle size, ensuring consistent magnetic properties and superior reactivity.
Advanced Surface Coating
Hydrophilic/hydrophobic surface treatment options for enhanced dispersion in solvents, polymers, or biological matrices.
Multi-Industry Applications
Ideal for biomedical imaging (MRI contrast agents), targeted drug delivery, ferrofluids, electromagnetic shielding, wastewater treatment (heavy metal adsorption), and nano-catalysis.
Strict Quality Compliance
CAS 1309-37-1 certified, batch-tested for magnetic saturation (70-90 emu/g) and low heavy metal content (<50ppm).
Bulk Supply Advantage
Direct factory pricing with scalable quantities—from R&D vials to ton-level industrial orders. Custom particle size/concentration available.
Global Logistics Network
Seamless worldwide shipping with hazardous material certification support.