... . Particle size:8nm40-60nm100nm300nm500nm1000nm2800nm2. Purity: 99.8% 3. MagneticNano Fe Oxide Powder Fe3O4 application range:1. Chemical industry, plastic, textile, painting ... .2. Electron, electronic packaging, ferrite material, cell.3. Metal, ceramic, nano ceramic, composite ceramic substrate.4. Uvioresistant material, microwave absorbing material ...