Can you tell us about iron oxide red, and what is iron oxide red used for?

Iron oxide red is widely used as a colorant for rubber, paint, artificial marble, and terrazzo on the ground; Plastic, asbestos, artificial leather, leather polishing pulp.

and other colorants and fillers; polishing agent for precision instruments and optical glass;

It is an important raw material for the manufacture of magnetic material ferrite components; and used in pottery.

porcelain, paper, ink and art pigments.

Iron red containing Fe2O3 98 is 5800 yuan per ton.

The physical properties are as mentioned above!

Chemical formula: Fe2O3

Aliases: ferric oxide, iron red, iron dan.

Physical Properties: General Properties: Reddish-brown powder.

Melting Point: 1565

Relative density (water = 1):

Solubility: insoluble in water, soluble in acid.

Relative molecular mass: 160

Ferric oxide can be obtained by burning ferrous compounds or iron hydroxide in the air.

In the humid air, a thin film of water is adsorbed on the surface of the steel, which contains a small amount of H+ and OH-, and also dissolves oxygen, resulting in the formation of a layer of electrolyte solution on the surface of the steel, which forms countless tiny galvanic cells with the iron in the steel and a small amount of carbon (because the steel is impure). In these galvanic cells, iron is the negative electrode and carbon is the positive electrode. Iron loses electrons and is oxidized:

Negative electrode: 2fe-4e-=2fe2+

Positive electrode: 2H2O+O2+4E-=4OH-

Galvanic corrosion is the main cause of steel corrosion.

3. Iron oxide 2 is red and can be used as pigments....

The molecular formula of iron oxide red is Fe2O3, and the color ranges from orange-red to purple-red. Good optical rotation, high temperature resistance, turbid gas resistance, alkali resistance, good tinting strength, strong hiding power, second only to carbon black. The coating film made with it is fine, which can play a physical role in rust prevention, and is mainly used for various primers, and sometimes as magnetic paint.

Due to the different manufacturing methods of iron red, the size and shape of the obtained particles are also different, so that the color of iron red changes from red-yellow to red-purple tones, and it is necessary to choose different shades of iron oxide red pigments according to the different requirements of coatings. Table 15 shows the relationship between the size of the iron red particles and their color, tinting strength, hiding power, specific surface area and oil absorption value.

Product name: Iron oxide red.

Product name: iron oxide red

Synonyms: ferric oxide; Iron red powder; Tiedan.

Molecular formula: Fe2O3

Product use: There are two kinds of coloring for paint, rubber, plastic, construction, etc., natural and artificial. The natural one is called Western Red.

It is basically pure iron oxide. Red powder. Due to the different production methods and operating conditions, their crystal structure and physical properties are very different, and the color varies from orange to blue to violet.

Both the hiding power and the tinting power are great. Density. It has superior light resistance, high temperature resistance, and resistance to atmospheric influences, dirty gases, and all alkalis.

In concentrated acids, it is gradually dissolved only when heated. It is widely used in construction, rubber, plastics, coatings and other industries, especially the iron red primer has the function of anti-rust, which can replace the first-class red dan paint and save non-ferrous metals. It is also a high-grade fine grinding material, which is used for the polishing of precision hardware instruments and optical glass.

High purity is the main base material for powder metallurgy, which is used to smelt various magnetic alloys and other high-grade alloy steels. It is obtained by mixing ferrous sulfate or iron oxide yellow or foot iron by high-temperature calcination, or directly from a liquid medium.

That's why their price difference is so big.

Magnetic materials, polishing and abrasive materials, paint and ink industry, etc.

Due to their special superparamagnetism, magnetic iron oxide particles have broad application prospects in giant magnetoresistance, magnetic liquid and magnetic recording, soft magnetism, permanent magnetism, magneto-cooling, giant magnetoimpedance materials, magneto-optical devices, magnetic detectors, etc.

Video tapes generally use needle-shaped iron or iron oxide magnetic ultrafine particles, while nano-iron oxide is a new type of magnetic recording material. Soft ferrite is widely used in radio communications, radio and television, automatic control, astronautics, radar navigation, measuring instruments, computers, printing, household appliances and biomedicine.

Iron Oxide Red Physical Properties:

Red to reddish-brown powder. Odorless. Insoluble in water, organic acids and organic solvents.

Soluble in inorganic acids. There are two types: -type (positive magnetic) and -type (diamagnetic). The fineness of products produced by the dry process is generally less than 1 m.

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.

The above content reference: Encyclopedia - Iron Oxide Red.

The color of iron oxide is reddish-brown. Iron oxide is ferric oxide, the chemical formula is Fe2O3, and it is a reddish-brown powder. Iron oxide is insoluble in water.

It has strong hiding power and tinting strength, and is free of oil and water permeability. Iron oxide is stable in the atmosphere and sunlight, resistant to dirty gases, high temperature and alkali.

Iron oxide is the main component of rust and hematite. The main cause of rust is the rust of iron metal in the presence of impurity carbon, which reacts with water and oxygen in the environment.

As a commonly used colorant in glass production, iron oxide-colored glass can absorb both ultraviolet and infrared rays, so it is widely used in the manufacture of heat-absorbing glass, sunglasses glass, industrial protective glasses glass and military anti-infrared coatings. At the same time, it has the function of low price, absorption and ultraviolet rays.

In addition, iron oxide pigments are also widely used as colorants and protective agents for wood coating. The use of transparent iron oxide pigments instead of traditional pigments preserves the clear grain of the wood, and the high lightfastness of the furniture makes the color of the furniture unchanged for a long time.

There are three common oxides composed of iron: Feo (ferrous oxide), Fe2O3 (ferric oxide), and Fe3O4 (ferric tetroxide). Both ferrous oxide and Fe3O4 are black.

Summary. Dear dear, it's a pleasure to answer your <>

To make iron hydroxide redder, you can consider the following methods:1Increase the concentration of iron hydroxide.

Concentration of a dilute iron hydroxide solution can increase the concentration of iron hydroxide, which makes it more vibrant in color. 2.Change the pH level.

Under neutral or weakly alkaline conditions, iron hydroxide has a brighter red color. If you want to make the iron hydroxide redder, you can adjust the pH to about it. 3.

Add the stain. Some suitable dyes can be added, such as methyl orange, acridine orange, etc., which can enhance the color of iron hydroxide and make it more vivid. <>

How iron hydroxide becomes redder.

Dear dear, it's a pleasure to answer your <>

To make iron hydroxide redder, you can consider the following methods:1Increase the concentration of iron hydroxide.

By concentrating the dilute iron hydroxide solution, the stool can increase the jujube concentration of iron hydroxide, so that its color is more vivid. 2.Change the pH level.

Under neutral or weakly alkaline conditions, iron hydroxide exhibits a brighter red color. If you want to make the iron hydroxide redder, you can adjust the pH to about it. 3.

Add the stain. Some suitable dyes can be added, such as methyl orange, acridine orange, etc., which can enhance the color of iron hydroxide and make it more vivid. <>

Kiss <>

Iron hydroxide (Fe(OH)3) is a brownish-red solid substance composed of iron ions and hydroxides in water. It is an important inorganic compound that can be used in wastewater treatment, electroplating, and industrial catalysts. In medicine, iron hydroxide has good adsorption and detoxification effects, and can be used for diseases such as lead poisoning and other poison poisoning.

In addition, it can be used as a precursor for the preparation of other iron compounds, such as iron salts, iron oxides, etc. [Xianxiao lacks bridge flowers] <>

Hello pro is happy to answer for you the color of the iron oxide is reddish-brown powder. Iron oxide is insoluble in water, soluble in hydrochloric acid and sulfuric acid, and slightly soluble in nitric acid. Strong hiding and tinting strength, no oil permeability and water permeability.

It is stable in the atmosphere and sunlight, resistant to polluting gases, high temperature and alkali. 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 to obtain iron oxide red products.

The color of iron oxide is reddish-brown.

Properties of Iron Oxide:

Iron oxide is the main component of rust. The main cause of rust is that iron metal will rust in the presence of impurity carbon, which reacts with moisture and oxygen in the environment.

Chemical Formula: Fe203

Melting Point: 1565°c

Boiling Point: 3414c

Water solubility: Insoluble in water.

Density: Appearance: reddish-brown powder.

Chemical Properties of Iron Oxide:

1. Iron oxide reacts with acid to form iron salts and water.

Example: Fe203 + 6HC1 = 2FeC13 + 3H202, thermite reaction aluminum and iron oxide are mixed to form a thermite, and alumina and iron are generated after heating.

Chemical Formula: 2A1 + Fe203 = High Temperature = A1203 + 2Fe3, Carbon, Carbon Monoxide Reducibility.

Iron oxide can be mixed with carbon and heated, and iron and carbon dioxide are extracted.

Chemical Formula: 3C+2Fe203=High Temperature=4Fe+3C02 1 Iron oxide can be mixed with carbon monoxide and heated to produce iron and carbon dioxide.

Chemical Formula: 3CO+FE203=High Temperature=2FE+3C02 Storage Method: Sealed storage, stored in a cool, dry and well-ventilated warehouse. Keep away from incompatible materials.

Preparation method: The preparation method is wet and dry. Wet products have fine crystals, soft particles, easy to grind, and are easy to use as pigments. Dry products have large crystals and hard particles, and are suitable for magnetic materials and polishing and grinding materials. <>