Contents
What is Iron Oxide and How is it Formed?
Iron oxide is a chemical powder consisting of small particles. It is formed spontaneously in nature as a result of the reaction of atoms on the iron surface with oxygen (O₂) in the air and water. Serving United States, United Kingdom and Turkiye with its production and sales of black iron oxide with the formula Fe₃O₄, EUNANO is an important part of the global iron oxide supply chain.
Our black nano magnetite product is used in the purification and separation of industrial waters, cooling and magnetic coatings. It is also applied to electronic machines such as optical and microwave devices, magnetic detectors and laser printers. In addition, it has taken its place in power plants, the automotive sector and the cosmetics sector. It is planned to be used in the production of new generation heat-resistant, non-deteriorating paints in the future.
The magnetite iron oxide powder that you will buy from us through our site is divided into two different groups: 20 nm and 20-200 nm. Both iron oxide powders have magnetite properties, only the quality level and particle sizes are different. The purity quality rate of the 20 nm particle size iron oxide powder is 97%. The other 20-200 nm particle size iron oxide powder has 95% purity. The International product code of both products is defined as: CAS#1317-61-9. While your 20 nm sized iron oxide powder requests are limited to only 1 kilo and 25 kg, you can create an order of at least 1 ton and at most 100 tons of the 20-200 nm sized product. You can use the 95% purity nanocomposite powder with 20-200 nm particle size in your business for your magnetite iron oxide powder requests for the purpose of separating the wastewater of factories and industrial enterprises. For information, call our customer service number (+90) 541 672 0994 immediately.
Iron Oxide Prices
What is Magnetite?
Magnetite is a type of iron oxide with the chemical formula Fe₃O₄ and is one of the few minerals found in nature where iron has two different oxidation states (Fe²⁺ and Fe³⁺). This mineral, which is in the form of a black powder, is known for its particularly strong magnetic properties. For this reason, magnetite is also known as "magnetic iron oxide". This mineral, which has many industrial and scientific uses, is especially important in devices related to magnetic fields, electronic circuits and scientific research.
Magnetite, which is available in powder form, provides a high surface area when reduced to nanoparticle size, which increases its reactivity and allows it to perform effectively in a wide range of applications. For example, the magnetite particles in your product are 20 nanometers in size, which gives this material a particularly large surface area and also contributes to its chemical reactivity. These properties make magnetite suitable for a wide range of applications, from biomedical applications to environmental engineering.
These properties of magnetite powder allow its use, especially in the biomedical field, in medical imaging techniques, as an adsorbent for heavy metal removal in water treatment systems, and as an anode material in energy storage devices. Due to its high magnetic capacity, it is valuable as a critical material in various branches of industry, scientific research and technological development.
Black Iron Oxide and Other Iron Oxide Color Varieties
Magnetite is a black form of iron oxide, but other types of iron oxide have different colors, such as:
Hematite (Fe₂O₃) has a reddish brown color and is often used as a pigment.
Maghemite (γ-Fe₂O₃) is brown in color, produced through certain processes and is again preferred as a pigment.
These color differences are due to the different chemical structures of each iron oxide. Due to their pigment properties, iron oxides are widely used in the paint and coating industries.
Areas of Use of Black Iron Oxide
Black iron oxide is used in many sectors, especially chemical, biomedical and electronics:
1. Biomedical Applications: Due to their magnetic properties, magnetite nanoparticles are used as contrast agents for medical imaging (MRI). They are also preferred in hyperthermia applications (destroying cancer cells by heating body tissues) in cancer treatments. These particles exhibit superparamagnetic properties and can be guided by an external magnetic field on biological samples.
2. Environment and Water Treatment: Magnetic iron oxides can be used as highly effective adsorbents for removing heavy metals and other toxins from water. Thanks to their magnetic properties, magnetite nanoparticles can be easily separated from water by magnetic field after purification.
3. Electronics and Energy: Magnetite can be used as an anodic material in lithium-ion batteries. It also provides advantages in energy storage systems due to its durability and capacity in electrochemical processes.
4. Pigments and Coatings: Synthetic magnetite is used as a black pigment in areas such as paint, ink and ceramics. It is preferred in the industry because it is more durable than non-magnetic black pigments.
The full list of application areas of iron oxide powders by sector is as follows;
Textile
Abrasives
Agricultural fertilizers and micronutrients
Automotive brakes and friction
Cosmetics and jewelry
Dense media and separation
Castings and molds
Heavy aggregate and ballast
Magnetic ads
Magnetic and smart fluids
Magnetite in modern medicine
Mineral fillings
Dyes and pigments
Pipe coatings
Power plant emission reduction
Protection, shielding and refraction
Solar cells
Sports equipment
Wastewater treatment
Water purification
EUNANO sells black nanocomposite iron oxide powder with magnetite properties for use as a raw material in products manufactured in the industries listed here. If you operate in any of these industries, please contact us today to purchase our high-purity iron oxide powder or learn more.
+90 541 672 0994
Magnetite (Fe₃O₄) Production Methods
In laboratory conditions, chemical precipitation methods are generally preferred for magnetite production. For example, magnetite nanoparticles are obtained by precipitating iron(II) and iron(III) salts in a basic environment. In industry, it can be produced by reducing iron oxides such as Fe₂O₃ (hematite) with hydrogen or carbon monoxide. As a result of this process, Fe₃O₄ is obtained and particle size and magnetic properties can be controlled by changing the process conditions.
In summary, magnetite black iron oxide has a wide range of uses and is an important component in the biomedical, environmental technologies, electronics and coating sectors. This mineral, which stands out with its magnetic properties, can be obtained in nanoparticle sizes with the right production methods and used in a wide variety of applications.
Nanocomposite Iron Oxide Powder (Fe₃O₄): Chemical Structure, Properties and Industrial Uses
With the development of nanotechnology, iron oxide nanoparticles have become an indispensable material in various industries. Nanocomposite iron oxide powder, in particular, with the formula Fe₃O₄ (magnetite), has attracted considerable attention due to its unique magnetic properties and wide range of applications. This article examines in detail the definition, chemical structure, particle properties, application areas, and logistics of nanocomposite iron oxide powder.
What is Nanocomposite Iron Oxide Powder?
Nanocomposite iron oxide powder is a nanomaterial produced from the mineral magnetite with the chemical formula Fe₃O₄. This compound contains both Fe²⁺ and Fe³⁺ ions. Its average particle size is 20 nm or in the range of 20–200 nm. Its nanoscale nature provides the material with high surface area, superior magnetic properties, and chemical stability.
Chemical Formula and Structure
Formula: Fe₃O₄
CAS Number: 1317-61-9
Structural Feature: Spinel crystal structure
Fe₃O₄ is a stable magnetic oxide containing both ferrous (Fe²⁺) and ferric (Fe³⁺) ions. Magnetite occurs naturally in mineral form, but the nanoscale synthetic form is generally preferred for industrial applications.
What Does the Concept of Nanocomposite Mean?
The term "nanocomposite" refers to a material manufactured at the nanometer scale, which means it has a higher surface area than traditional macroscale materials. The nanoscale enhances performance in applications such as catalysis, biomedical transportation, and electronic component manufacturing.
Physical Features
Colour: Black (graphite look)
Purity: Around 95%
Magnetic Property: Ferromagnetic (permanent magnetism)
Particle Size: 20 nm and 20–200 nm options are available.
Difference Between Fe₃O₄ and Fe₂O₃
Fe₃O₄ (Magnetite): It has ferromagnetic properties and contains both Fe²⁺ and Fe³⁺.
Fe₂O₃ (Hematite): It is paramagnetic and contains only Fe³⁺.
While Fe₃O₄ is preferred in magnetic applications, Fe₂O₃ is used in pigment and surface coating.
Areas of Use
Fe₃O₄ nanocomposite powder is used in a wide industrial spectrum:
Wastewater treatment (heavy metal and toxic ion removal)
Magnetic fluids (ferrofluids)
Catalyst production
Biomedical applications (drug delivery, magnetic hyperthermia)
Electronics and energy storage (batteries and supercapacitors)
Magnetic separation and recording technologies
Supply and Logistics Information
Turkiye-based manufacturers and suppliers (e.g., EUNANO) offer both domestic and international shipping. Products are typically sold in 25 kg boxes, with packs ranging from 100 g to 1000 g available for sampling.
Nanocomposite Powder Summary Table
| Feature |
Detail |
| Chemical Formula |
Fe₃O₄ (Magnetite) |
| Particle Size |
20 nm or 20–200 nm |
| Purity |
Approximately 95% |
| Colour |
Black (Graphite) |
| Magnetism |
Permanent / Ferromagnetic |
| Areas of Use |
Purification, catalysis, medical, electronics, etc. |
| CAS Number |
1317‑61‑9 |
| Transfer |
Turkiye + International |
Nanocomposite iron oxide (Fe₃O₄) powder, with its superior magnetic properties and nano-size advantages, is a critical material used in many industries. This material, with a wide range of applications from industrial manufacturing to biomedical applications, is expected to become even more widespread as technology advances.
Nanocomposite Prices
The Role of Iron Oxide Powder in Paint Production
Iron oxide powders have an important place in the paint industry because they offer a wide range of color options, are durable and cost-effective. Iron oxide pigments used in paint production are generally in natural colors such as red, yellow and black, and are also produced synthetically. Since these pigments are inorganic, they are resistant to sunlight, chemical effects and abrasion. The use of iron oxide powders in paint production serves to provide permanent color in both interior and exterior paints, coatings and varnishes.
Use in Paint Manufacturing
Iron oxide pigments are first mixed with binders, solvents and additives in the paint production process to obtain a homogeneous structure. Since these pigments do not dissolve easily in water or solvent-based systems, they are used to create a particularly durable and long-lasting color. In paint production, iron oxide pigments are generally processed in the following steps:
1. To mix up: Iron oxide powder is distributed homogeneously with the other ingredients using a mixer.
2. Grinding: The mixture is subjected to a grinding process to obtain a finer particle size. This stage allows the paint to provide a more uniform coating and color quality.
3. Filtering: Large particles in the mixture are removed to obtain a fine pigment.
4. Packaging and Storage: Paint is packaged and made ready for sale before reaching the end user.
Iron oxide pigments are used in various paints such as concrete paint, wood paint, metal coatings, auto paints, road marking paints. In addition, these pigments are preferred in building exterior paints as they provide natural appearance and aesthetics, as well as resistance to harsh weather conditions.
Areas of Use in United States, United Kingdom, Turkiye and the World Market
Among the products produced with iron oxide pigments in United States, United Kingdom, Turkiye and around the world, construction paints, industrial paints and auto paints are at the forefront. In Turkiye, iron oxide pigments are used intensively, especially in the concrete and construction sectors. Iron oxide pigments are preferred to obtain natural tones in concrete paints and decorative coatings.
In the world market, iron oxide pigments have a wide range of use in various sectors with different products. For example:
Construction Industry: Road marking paints, pavement and floor coverings, prefabricated building paints.
Furniture and Wood Industry: Wood protection coatings and wood paints obtained with natural tones.
Automotive Industry: Automotive paints and coating products.
Industrial Paints: Durable paints that provide protection for machinery and equipment.
Iron oxide pigments, beyond just providing color, increase the resistance of paints to sun, water, corrosion and chemical effects. These features ensure that structures and products maintain their aesthetic appearance for a long time. Annual consumption of iron oxide pigments is quite high worldwide, with United States, United Kingdom, Turkiye and other production countries having a significant share in this market.
Iron oxide powders are one of the indispensable raw materials for the paint industry. These pigments, used in various sectors, offer great advantages in terms of aesthetics, durability and performance. Paints produced with iron oxide pigments in areas such as construction, industry and automotive, both in Turkiye and worldwide, have an important place in the market.
Magnetite black iron oxide plays a very useful role in most of the above mentioned industries. You can buy Fe3O4 powder (International product code CAS#1317-61-9) in 20nm or 20-200nm particle size with EUNANO assurance.
Iron Oxide Prices
Fe3o4 Powder Analysis Reports
Different analysis reports are available for both product types.
a) Current reports on black magnetite iron II, III oxide powder with 97% purity and 20 nm particle size
1. Material Safety Data Sheet
(20 nm - Purity: 97%)
2. Micro Particle
(20 nm - Purity: 97%)
3. Certificate of Analysis
(20 nm - Purity: 97%)
b) Black magnetite nanocomposite iron oxide powder reports sold in 20-200 nm particle size with 95% purity
1. Material Safety Data Sheet
(20-200 nm - Purity: 95%)
2. Micro Particle
(20-200 nm - Purity: 95%)
3. Certificate of Analysis
(20-200 nm - Purity: 95%)
About us
EUNANO is a leading nanotechnology company in Turkiye, specializing in the production of the natural nanomagnetic mineral iron oxide (chemical formula Fe₃O₄). We are actively involved in the development, production and distribution of this important nanomaterial, which has a number of special properties that make it particularly suitable for a variety of applications in the chemical, automotive, medical, textile and other industries. Our company carries out its commercial activities under the title of Revak Engineering Ltd. You can reach the full company information by clicking on the contact page.
The price of Nano fe 3o4 iron oxide you will purchase includes VAT. All orders placed during weekday working hours (09.00 - 16.00) are shipped on the same day.
Magnetite iron oxide fe3o4 powder is sold in its natural form as shown in the images.
You can see the pictures and videos of the original boxes of magnetite iron oxide Fe₃O₄ powder that you will purchase in its organic form on our YouTube channel.
Frequently Asked Questions (FAQ) About Iron Oxides
1. What is iron oxide powder with the formula Fe₃O₄?
Fe₃O₄ is a natural iron oxide mineral known as magnetite. It is black in color and exhibits magnetic properties. It is preferred especially in industrial, scientific and technological applications with its nanocomposite structure.
2. In what areas is iron oxide powder used?
Fe₃O₄ powder has a wide range of uses in magnetic fluids, catalysts, biomedical carrier systems, electronic components, battery production and water treatment systems.
3. What sizes of iron oxide powders are available?
The iron oxide powders on our site are generally offered in 20 nm or 20-200 nm particle sizes. You can contact us for special requests.
4. What is a CAS number and what does it represent?
The CAS number of our product is 1317-61-9. This number is the international identification number of chemical substances and defines the purity and standard of the product.
5. Are iron oxide powders sent abroad?
Yes, international shipments are available from our warehouse in Turkiye, United Kingdom and United States. Exports are made to European and Middle Eastern countries, you can request a quote for logistics and customs details. For information, you can call our iron oxide hotline at (+90) 541 672 0994.
6. What is the difference between magnetite iron oxide (Fe₃O₄) and other types of iron oxides (Fe₂O₃, FeO)?
Magnetite (Fe₃O₄) is a stable and magnetic iron oxide containing both Fe²⁺ and Fe³⁺ ions. Its most important difference is that it has magnetism. In contrast, hematite (Fe₂O₃) is paramagnetic, while maghemite has a weaker magnetic profile. Magnetite is preferred in areas such as electronics, biomedical and magnetic separation; Fe₂O₃ is used in pigments, ceramics and anti-corrosive coatings.
7. What is iron powder and in what forms is it found?
Iron powder is the ground form of pure or alloyed iron metals in micron or nanometer sizes. It is available in atomized, sponge iron, reduced or electrolytic forms.
8. Where is iron powder used?
Iron powder is used in metal injection molding, powder metallurgy, automotive parts production, welding electrode production, magnet making, pyrotechnic materials and water treatment systems.
9. Is iron powder magnetic?
Yes. Most forms of iron powder, especially Fe3O4 (magnetite) and pure iron powder, are highly magnetic. This property is valuable in electromagnetic devices and in the manufacture of magnetic composites.
10. Is iron powder flammable?
Yes. Fine particle iron powder can become flammable when in contact with oxygen. Therefore, precautions must be taken in accordance with ATEX or similar safety standards against the risk of explosion during storage.
11. What is the difference between iron powder and iron oxide powder?
Iron powder consists of metallic iron, while iron oxide powders (e.g. Fe₂O₃ or Fe₃O₄) are in oxidized form. The former are stronger in terms of conductivity and magnetic properties, while the latter are used as pigments, catalysts and magnetic nanomaterials.
12. What is nanocomposite iron oxide powder?
Nanocomposite iron oxide powder is a black powder with nanoparticle sizes (generally 20nm and 20–200nm) with the formula Fe₃O₄ (magnetite). It exhibits ferromagnetic properties and provides superior performance in chemical and physical applications thanks to its high surface area.
13. What chemical formula defines a nanocomposite?
Magnetite, with the basic formula Fe₃O₄, is a stable compound containing both Fe²⁺ and Fe³⁺ ions. Magnetite occurs naturally as a mineral and can also be produced synthetically by constructing nanocomposites.
14. In what areas is Fe₃O₄ nanocomposite powder used?
This type of nanomagnetite is applied in many sectors such as wastewater treatment, ferrofluids, catalysis, biomedical carrier systems, electronic components, magnetic separation and recording technologies, and battery production.
15. What particle sizes does Fe₃O₄ nanocomposite powder come in?
Manufacturers like EUNANO typically offer products in particle sizes of 20nm or 20–200nm. The nanosize enhances surface reactivity and application performance.
16. What are the purity and color properties of the nanocomposite?
Purity rate: Around 95% (e.g. for 20–200nm).
Colour: Graphic black.
Type: Magnetit (Fe₃O₄).
17. What does Fe₃O₄ nanocomposite powder cover?
International shipping is available from warehouses in Turkiye. Logistics support is available for shipments to regions such as Europe and the Middle East. For details, it is recommended to request a quote from the supplier.
18. How many different colors of colored iron oxide pigments are produced?
Coloured iron oxides are usually produced in shades of red (Fe₂O₃), yellow (α-FeOOH), brown and black (Fe₃O₄). These pigments are classified according to their different hydration levels and crystal structures.
19. In which industries are colored iron oxides used?
These pigments are used primarily in the paint, ceramic, construction chemicals, asphalt, plastic, rubber and ink industries. They are preferred due to their color stability, UV resistance and resistance to environmental effects.
20. Is there a difference between natural and synthetic types of colored iron oxides?
Yes. While natural iron oxides tend to have more irregular particle distribution, synthetic pigments offer more uniform color, finer particle size and higher purity. Therefore, synthetic versions are preferred in areas requiring high performance.
21. Are colored iron oxide pigments resistant to UV rays and outdoor weather conditions?
Yes. Colored iron oxide pigments are highly resistant to light and atmospheric conditions. Therefore, they are used to obtain long-lasting color, especially in exterior paints, floor tiles and concrete products.
22. Can colored iron oxide powders be used in the food and cosmetics industry?
Only certain types of colored iron oxides that are produced in high purity and in accordance with certain regulations can be used in the food and cosmetics sector (e.g. lipstick or foundation). Forms defined with the code E172 are available for such uses.
23. Can I return the iron oxide powder I purchased from EUNANO?
Iron oxide powders are in the chemical product category and chemicals cannot be returned. Please request a small sample before purchasing large quantities of iron oxide powder from us! Call us for more detailed information. (+90) 541 672 0994
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