SAT NANO is an excellent manufacturer of Fe3O4 dispersion 50nm in China. Nano Fe3O4 dispersion is a liquid product formed by dispersing nano iron oxide particle in a solution. ferric oxide dispersion has broad application prospects and important application value in fields such as materials science, biomedical science, and environmental science.Customer can use them very convenient. Powder and dispertion are available. We can supply 50nm, 20-30% content.