Ferric Oxide Nanopowder (Fe3O4)
The powder consists for not less than 99% of mass Fe3O4. About 1% mass take adsorbed gases (CH4, CO2, O2, N2).
Physical and chemical characteristics
Powder of brown colour. Average size of particles is 80-110 nm. Some particles form microagglomerates. Powder bulk density is about 1,03 g/sm3. Specific surface area measured by BET is 10 m2/g. Melting temperature is 1550 C. It has no smell.
Ferric oxide powder (II, III) can be used in making magnetic carriers, in medicine.