What is in iron oxide, is iron oxide a metallic material

Iron oxide isMetal oxides, not a metal material.

Iron oxide (Fe2O3) is a reddish-brown powder, commonly known as iron red.

Pigments that can be used as paints are metal oxides that can react with acids. Iron oxide is the main component of rust. The main cause of rust is that iron metal reacts with finch moisture and oxygen in the environment in the presence of impurity carbon, and iron metal will rust.

Uses:

Iron oxide pigments are a kind of inorganic color pigments with a large amount and wide range, which are widely used in building materials, coatings, inks, rubber, plastics, ceramics, glass products, hardware glass polishing, theatrical oil paint, painting, cosmetics, medicinal coloring, envy paper materials, photocopying materials, catalysts, electronic industry and audio and video magnetic memory materials.

Worldwide, building materials account for 53% of total iron oxide consumption, paints 33%, plastics and rubber 5%, and others 9%. Therefore, the construction industry has influenced the consumption level of iron oxide in the world.

The above content reference: Encyclopedia - Iron Oxide.

Hello, iron oxide is an inorganic substance with the chemical formula Fe O, which is a red or dark red amorphous powder. The relative density is 5, and the melting point is 1565 (simultaneous decomposition). Insoluble in water, soluble in hydrochloric acid and sulfuric acid, slightly soluble in nitric acid.

Strong hiding and tinting strength, no oil permeability and no water permeability. As a pigment, iron oxide is widely used in high-grade automotive coatings, architectural coatings, anti-corrosion coatings, powder coatings, and is a good environmentally friendly coating, with an annual consumption of iron oxide pigments in the world exceeding 1 million tons, second only to titanium dioxide, and ranking second among inorganic pigments.

Ferric oxide, chemical formula Fe2O3. [1] It is also known as burnt limonite, burnt ochre, iron dan, iron red, red powder, Venetian red (the main component is iron oxide), etc. It is easily soluble in strong acids, medium strong acids, and has a reddish-brown appearance.

Its reddish-brown powder is a low-grade pigment, known as iron oxide red in industry, used in paint, ink, rubber and other industries, can be used as a catalyst, glass, gemstones, metal polishing agent, can be used as ironmaking raw materials.

Iron oxide is ferric oxide, and its chemical formula is Fe2O3.

There are two preparation methods (wet and dry):Wet

feso4+2naoh=fe（oh）2+na2so44fe（oh）2+o2+2h2o=4fe（oh）34feso4+4h2o+o2=2fe2o3↓+4h2so4fe+h2so4=feso4+h2↑

A certain amount of 5% ferrous sulfate solution is quickly reacted with excess sodium hydroxide solution (excess alkali is required, and air is introduced at room temperature to make it all turn into a reddish-brown iron hydroxide colloidal solution, which is used as the crystal nucleus for depositing iron oxide. With the above-mentioned crystal nucleus as the carrier, with ferrous sulfate as the medium, the air is introduced, in the presence of metallic iron, the ferrous sulfate reacts with oxygen in the air to generate iron oxide (i.e., iron red) deposited on the crystal nucleus, and the sulfate in the solution reacts with the metal iron to regenerate ferrous sulfate, and the ferrous sulfate is oxidized into iron red by the air and continues to be deposited, so that the cycle ends to the end of the whole process, and the red iron oxide is generated.

Dry process

Nitric acid reacts with iron to form ferrous nitrate, which is cooled and crystallized, dehydrated and dried, and calcined at 600 700 for 8 10h after grinding, and then washed, dried and crushed in water to obtain iron oxide red products.

4Fe(NO3)3 2Fe2O3+12NO2 +3O2 Fe2O3·NH2O Fe2O3+NH2O can also be used as raw material for iron oxide yellow, which is calcined at 600 700 to obtain iron oxide red.