High Purity Iron Oxide Fe2O3 Powder CAS 1309-37-1,99.9%

Chemical formula: Fe2O3. Iron oxide Powder amorphous, reddish or deep-red. Water insoluble, but soluble and soluble in both sulfuric acid (HCL) and hydrochloric Acid. It may be slightly soluble or insoluble in nitric acids. Purity: 99.5%
Size: Particles 50nm,150nm

About Iron Oxide, Fe2O3 powder
Iron III oxide, haematite, and ferric oxideare inorganic compounds that have the molecular formula Fe2O3. It is one the three major forms of iron.

Fe oxide, iron triooxide have the same formula Fe2O3. This inorganic compound is one of the main iron oxides found naturally in the mineral magnetite. It can be used to suspend iron dioxide in applications, biomedicine and agriculture. Pulsed iron oxide's advantage is its ability to be modified using a wide range of inorganic or organic compounds (starch, polyelectrolyte, and non-ionic detergent), so it can be used in more applications. Magnet iron oxide can also be applied in biomedical applications.

The iron oxide compound has ferromagnetic qualities. Magnetic properties can be achieved when the compound is placed in an external magnet field. They can exhibit this characteristic when they are controlled in size and crystal structure. The magnetic properties of iron oxide and their ease-of-use separation have made them the focal point of medical diagnostics and magnetic resonance imaging. While the application of iron dioxide on the macro-scale is important and has a high reactivity, it can also be spontaneously combustible when smaller quantities are available at the nano and micron scales. Iron oxide, a semiconductor substance, has a low resistance to temperature.

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Iron Oxide Fe2O3 powder performance:

It can be reddish-brown powder or iron oxide red. Odorless. Water, organic acids, and organic solvents insoluble. It is also soluble in organic acids. You can choose from two kinds: a (positive magnetic) or g (diamagnetic). Dry-produced products generally have a fineness below 1mm. They are stable to light, heat, and air. It is less sensitive to alkali and acid. Strong coloring power. Relative density of 5.12 5.24. A lower content means a lower relative density. Refractive Index 3.042. Refractive index 3.042.

Technical Parameters of Iron Oxide Fe2O3 powder.

TEST ITEMS H130 H190
Content Fe2O3>=% 96 96
105degC volatile matter <=% 0.9 0.9
Hydrotrope <=% 0.25 0.25
Water-soluble sulfate and chloride=% 0.18 0.18
Residue on Sieve (10um)mesh 0.45 0.45
Water suspension pH value 5.0-7.0 5.0-7.0
Oil absorption (ml/100g). 20 20
Color (as measured against the sample) Micro- Micro-
Tinting strength in percent 99 99

It is simple. Iron Oxide Fe2O3 Powder produced?
Wet or dry preparations of Iron Oxide Fe2O3 are available. Products made using wet processing have soft and fine crystals. These products are also easy to process as pigments. Products made from dry processes have larger crystals and harder particles that are ideal for magnet materials, polishing, and abrasive material.
1. Get Wet This method
You will need to quickly react some 5% ferrous sulfurate solution with excess sodium hydroxy solution. The alkali excess should be 0.040.08g/mL. Once the mixture is reddish-brown ferrichydroxy colloidal solution has been formed, it can then be used as the nucleus to deposit iron oxide. As the carrier, take the crystal nucleus and use ferrous-sulfate to act as the medium. When there is metallic iron present at 7585 the ferrous Sulfate reacts and forms iron oxide.
2. Dry method
Iron reacts with Nitric acid to create ferrous nitrate. This is then cooled and crystallized. The ferrous nitrate can then be dehydrated and dried. Finally, the ferrous nitrate must be ground, calcined at 600 to 700°C for between 8 and 10 hours. Once calcined, water should be used to wash it. You can use iron oxide yellow as a raw material for red iron oxide. This is after it has been calcined at 600700.

Applicaciones Iron Oxide Fe2O3 Powder :
1. Iron industry
It is used as the primary feedstock in the iron (III) oxide and steel industries. Iron, steel and other alloys are produced.
2. Polishing
The fine ferric oxide powder known as "jeweler’s red", "red rouge", and simply "roi" is the name for it. It's used to polish metallic jewellery and lenses. It cuts faster than modern polishes such as cerium(IV), but it is still useful in optics fabrication, and jewelers for the exceptional finish that it can provide. Rouge slightly stain gold when polishing it. This contributes to its appearance. The rouge can be sold in powder or paste form. It is also laced onto polishing cloths and solid bars with a grease or wax binder. Rouge is sometimes used in conjunction with other polishing agents, even though they are not made from iron oxide. The ultrasonic cleaning can be used to clean jewelry of any remaining rouge. To give razor edges to knives and straight razors or other sharpened tools, "stropping chemicals" can be applied to leather strops.
3. Iron oxide pigments
These two colours are used to make pigments.
Iron(III), oxide may also be used in pigments under the names of "Pigment Brown 6", 7", and 101. Some, like Pigment Red 101 or Pigment Brown 6, can be used as pigments. Pigment Red 101 and Pigment Brown 6 have been approved for cosmetics by the US Food and Drug Administration. In dental composites, titanium oxides and iron oxides both are used as pigments. Falu-red is made up of hematite, which is the most distinctive component in the Swedish paint.
4. Magnetic recording
Iron (III-Oxide) was the most widely used magnetic particle for all kinds of magnetic storage and record media. This included magnetic tape and magnetic disks, which are used to store data. The use of iron(III) oxide in computer disks has been superseded with cobalt alloy. This allows for thin magnetic films that have a higher storage density.
5. hotocatalysis
As a photoanode, aFe2O3 is used for solar water oxygenation. The reaction requires high overpotential, which limits its effectiveness. The research has focused on improving water oxidation performance for Fe2O3 through nanostructuring, surface functionalityization or using alternate crystal phases like b-Fe2O3.
6. Me dicine
Calamine lotion is used to reduce mild itching. This is what gives the lotion its pink color.

Iron Oxide Fe2O3 Powder Storage Conditions:

Iron Oxide Fe2O3 Powder should be kept in a dry, cool environment. It should not be exposed to air.

Shipping and Packing of Cerium Oxide Fe2O3 powder
You can pack it in two plastic bags with the inside.
Packaging of iron oxide Fe2O3 powder in vacuum packaging, 100g to 500g or 1kg/bag at 25kg/barrel. Or as you request.
Iron Oxide Fe2O3 powder shipping send out by Sea, Air, or Express as soon as you receive payment receipt.


Footprintbooks' advanced material Nano Technology Co. Ltd., (Footprintbooks), is a trusted supplier and manufacturer of high-quality chemical materials. They have over 12 years of experience providing nanomaterials such as graphite powder and nitride.
Send us an enquiry if you're interested in high-quality Iron powder. (brad@ihpa.net)

Iron Oxide Properties

Other Titles ferric oxide and red iron oxide. Micaceous iron oxide. Fe2O3 powder
1309-37-1
Compound Formula Fe2O3
Molecular Weight 159.69
Appearance Reddish-brown Powder
Melting Point 1566 degC
Boiling Point N/A
Density N/A
Solubility of H2O Insoluble
Exact 159.855 g/mol

Iron Oxide Safety & Health Information

Signal word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety statements N/A
Transport Information NONH

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