In chemistry what is the difference between ferric oxide and ferric tetroxide

Iron oxide (Fe2O3) is a reddish-brown powder, commonly known as iron red, which can be used as a pigment for paints, is a metal oxide, and can react with acids. fe2o3 + 6hcl=2fecl3+3h2o。

Ferro-tetroxide is a black crystal with magnetic properties, commonly known as magnetic iron oxide, which is a complex oxide, in which 1 3 is Fe3 is Fe3+, Fe3O4 can be regarded as a compound formed by FeO, Fe2O3. [The essence is Fe(FeO2)2, ferrous metaferrite].

Iron oxide (Fe2O3) is a reddish-brown powder commonly known as iron red ferric tetroxide Chemical formula Fe3O4 is a black crystal commonly known as a magnet.

The easiest way: look at the color, the black is ferric oxide, and the red is ferric oxide. It's as simple as that.

Ferric oxide, also known as iron oxide black. Chemical Formula: Fe3O4, Molecular Weight, Inverse Spinel Type, Cubic Crystal System, Black Solid Powder, Density. Melting point.

Ferric Oxide] chemical formula Fe3O4, formula amount. Iron has two valencies in ferric tetroxide, which have been researched.

It is understood that Fe3O4 is an iron ( ) salt, i.e., Fe Fe [Fe O4]. Black crystals, density gram cm3. Yes.

Magnetic, so it is also called magnetic iron oxide. In its humid state, ferric oxide is easily oxidized to ferric oxide in the air. No.

Soluble in water, soluble in acid. used as pigment and polishing agent. Magnetic iron oxide is used in the production of audio tapes and telecommunications equipment. With red heat.

Iron is prepared by reacting with water vapor.

Because it is magnetic, it is also known as magnetic iron oxide. Insoluble in water, soluble in acid (Fe3O4 + 8H+ = Fe2+ +2Fe3+ +4H2O), insoluble in alkali, insoluble in ethanol, ether and other organic solvents. But natural Fe3O4 is insoluble in acids.

Ferric oxide can be regarded as FeO·Fe2O3 and is considered to be a salt of iron(III)ic acid by X-ray studies.

Iron wire is burned in oxygen to form ferric tetroxide; Iron is heated to 500 in the air, and the iron reacts with the oxygen in the air to form ferric tetroxide; The blue-gray detritus scattered around the blacksmith's anvil is mainly ferric oxide; Iron is replaced with high-temperature water vapor to form ferric tetroxide and hydrogen; The main component of natural magnetite is the crystals of ferric tetroxide. Ferric oxide is an important compound of common iron.

Ferric oxide is a ferrite, i.e., Fe2+Fe3+(Fe3+O4) (i.e., FeFe(FeO4) preceding 2+ and 3+ represent the valence state of iron). In Fe3O4, iron shows two valence states, one iron atom shows +2 valence, and two iron atoms show +3 valence, so ferric tetroxide can be regarded as a compound composed of FeO and Fe2O3, which can be expressed as Feo·Fe2O3, and cannot be said to be a mixture composed of FeO and Fe2O3, it belongs to pure substance.

Preparation method: 1) The wire is burned in oxygen.

2) Thin iron wire heated to 500 in air will also burn to form ferric oxide:

3) Iron reacts with water vapor at high temperatures.

3fe + 4h2o = fe3o4 + 4h2

We can also use certain chemical reactions, such as the use of sodium nitrite, etc., to produce a dense layer of ferric tetroxide on the surface of steel, which is used to prevent or slow down the corrosion of steel, such as the blueness and blackening of the surface of firearms, saw blades, etc.

Natural magnetite is the raw material for iron smelting. Ferric tetroxide is mainly used to make primers and topcoats, it is very hard and can be used as an abrasive. Specially made pure ferric tetroxide is used as a raw material for audio tapes and telecommunications equipment. Ferric oxide can also be used as a pigment and polishing agent.

Iron oxide is Fe2O3 and ferric oxide is red or reddish-brown, which is iron red for dyeing.

Iron oxide and ferric oxide chemical symbol FE2O3 are the products of complete oxidation of iron element; ferrous oxide FEO, a product of partial oxidation of iron element; Ferric oxide Fe3O4 is a product of partial complete oxidation, and the chemical conditions for its formation are different.

Ferric oxide is reddish-brown (hematite), iron tetroxide is black (magnetite).

It is a brown-red (red) or black powder, commonly known as iron red, with a melting point of 1565 and a relative density. It exists in the form of hematite in nature, has amphotericity, reacts with acid to form Fe( ) salt, and reacts with strong alkali to obtain [Fe(OH)6]3-. It has a certain reducibility in strong alkali medium and can be oxidized by strong oxidants.

Ferric oxide is insoluble in water and does not interact with water. It can be prepared by calcining ferrous sulfate, ferric oxalate, and iron oxide oxide, and it can also be prepared by calcining pyrite in the air. It is often used as pigments, polishes, catalysts and red powders.

It is a black crystal, heated to the melting point (1594 5) and decomposed at the same time, with a relative density, it has good magnetic properties, so it is also called "magnetic iron oxide". It is the main component of naturally occurring magnetite, which is easily oxidized to ferric oxide in the air in a humid state. Insoluble in water, soluble in acid.

The difference between ferric tetroxide and ferric oxide is that the valency of iron elements is not the same. Different physical properties, different appearances, and different applications

The physical properties are different:

1. Ferric oxide, odorless. Insoluble in water, organic acids and organic solvents. Soluble in inorganic acids. Stable to light, heat and air. It is relatively stable to acids and alkalis. Strong tinting strength. Refractive index. The melting point is 1550, and it decomposes in about 1565.

2. High bucket triferric tetroxide, black Fe3O4 is a mixed valence oxide of iron, the melting point is 1597, the density is, not dissolved in water, soluble in acid solution, in nature in the form of magnetite, at room temperature has strong submagnetism and high conductivity.

Ferromagnetic and ferromagnetic substances undergo a second-order phase transition above the Curie temperature to transform into paramagnetic substances. The Curie temperature of Fe3O4 is 585.