What is epsilon iron oxide?

Epsilon-iron oxide (ε-Fe2O3) is a polymorph that shows an extremely large coercive field as a magnetic oxide. It maintains its ferromagnetic ordering even when downsized to a single nano-sized scale (i.e.,<10 nm).

What is the name of Fe3O4?

Iron (II,III) oxide
Ferrosoferric oxide is an iron oxide. Iron (II,III) oxide (Fe3O4). It is a black ore of IRON that forms opaque crystals and exerts strong magnetism.

What is epsilon phase?

Hexaferrum and epsilon iron (ε-Fe) are synonyms for the hexagonal close-packed (HCP) phase of iron that is stable only at extremely high pressure. Epsilon was chosen for the new phase to correspond with the HCP form of cobalt.

What is the structure of Fe3O4?

FeO·Fe2O3
Iron(II,III) oxide/Formula

How is iron III oxide prepared in the laboratory?

Iron(III) oxide is a product of the oxidation of iron. It can be prepared in the laboratory by electrolyzing a solution of sodium bicarbonate, an inert electrolyte, with an iron anode:

What kind of agent dissolves iron ( III ) oxide?

It also dissolves well in solutions of chelating agents such as EDTA and oxalic acid . Heating iron (III) oxides with other metal oxides or carbonates yields materials known as ferrates (ferrate (III)): Iron (III) oxide is a product of the oxidation of iron.

How are ultrafine particles prepared from iron oxide?

Another method involves the careful oxidation of iron (II,III) oxide (Fe 3 O 4 ). The ultrafine particles can be prepared by thermal decomposition of iron (III) oxalate . Several other phases have been identified or claimed.

Are there any forms of iron that are stable at high pressure?

At very high pressure, a fourth form exists, called epsilon iron (ε-Fe). Some controversial experimental evidence suggests the existence of a fifth high-pressure form that is stable at very high pressures and temperatures.