Name | Barrium ferrite |
Synonyms | dodecaferric BARIUM FERRITE Barrium ferrite oxygen(-2) anion BARIUM IRON OXIDE barium(+2) cation BARIUM FERRITE, powder Barrium ferrite, powder BARIUM FERRITE, -325 MESH BARIUM DODECAIRON NONADECAOXIDE |
CAS | 11138-11-7 |
EINECS | 234-387-4 |
InChI | InChI=1/Ba.12Fe.19O/q+2;12*+3;19*-2 |
Molecular Formula | BaO.6Fe2O3 |
Molar Mass | 1111.45 |
Density | 5,28 g/cm3 |
Melting Point | >1315℃ |
Appearance | nanopowder |
Use | Used in the manufacture of magnetic steel, magnetic film, toys |
Hazard Symbols | Xn - Harmful |
Risk Codes | 20/22 - Harmful by inhalation and if swallowed. |
Safety Description | 28 - After contact with skin, wash immediately with plenty of soap-suds. |
UN IDs | UN 1564 6.1/PG 3 |
WGK Germany | 3 |
TSCA | Yes |
Hazard Class | 6.1 |
hexagonal crystal. Ferromagnetism. Brown powder. Soluble in hot hydrochloric acid. Insoluble in water and organic solvents. The saturation magnetization was 89. 2 ntm3.g− 1, the magnetocrystalline anisotropy constant was 3.2 × 10-7 J.111-3, the density was 5330kg-m-3, and the resistivity was 106 n-m.
chemical co-precipitation method. The chloride salt solution of Fe and Ba was mixed in a certain proportion, and then co-precipitated with NaOHNa2 C03 alkaline solution. The precipitate was filtered, washed with water, and then sintered at 925 ℃ to obtain magnetic powder. The magnetic powder was placed in a ball mill and dispersed by ball milling.
magnetic card, magnetic ticket
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Overview | barium ferrite has high coercivity, saturation magnetization, uniaxial magnetocrystalline anisotropy, excellent Rotating magnetic properties, high Curie temperature, and stable physical and chemical properties, for many years, it has been widely used in permanent magnets, high-density vertical magnetic recording materials, microwave devices, microwave absorbing materials and other fields. |
Application | used in the manufacture of similar magnetic steel, magnetic film, toys, etc. |