Zhishang Chemical

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Zhishang Chemical

Ferric Oxide CAS 1309-37-1

Molecular Formula: Fe2O3

Formula Weight: 159.69

ZSpharmac: Ferric Oxide Supplier

Product Name: Ferric Oxide
CAS No: 1309-37-1
Purity: 99%

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Basic Info

Product Name:Ferric Oxide
Other Names:Iron(III) Oxide
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Black Pieces
EINECS No.:215-168-2
Provide:Ferric Oxide MSDS;
Ferric Oxide COA

What is Ferric Oxide?

Ferric oxide, additionally called iron red, iron red, red powder, and more, has the chemical formula Fe2O3, is soluble in hydrochloric acid, as well as is a red transparent powder of trigonal crystal system. The little bits are great, the piece dimension is 0.01-0.05 μm, the information surface area is big (10 times that of regular iron oxide red), it has strong ultraviolet absorption efficiency, and also it has impressive light resistance along with climatic resistance. When light is forecasted onto paint movies or plastics consisting of transparent iron oxide red pigments, they show up transparent. The family member thickness is 5.7 g/cm3, in addition to the melting point is 1396 ° C. It is a brand-new option with special homes amongst iron-based pigments.

Iron oxide pigments have outstanding tinting domestic or business buildings. In porcelains, the tinting residential or commercial residential properties of iron oxides are generally used to prepare lusters of many colors. As a result of the different prices of iron ions, iron oxides themselves have different shades. Such as: ferric oxide (Fe2O3) is red powder, ferrous oxide (FeO) as well as also ferric oxide (Fe3O4) are black powder. On top of that, in the production procedure of porcelains (polish), various firing settings are used, as well as the pigmentation of iron oxide is also numerous. Under the oxidizing flame atmosphere, the coloring of iron oxide adjustments from yellow to red brownish, as well as after that turns into grape red. is brown. Under the decreasing setting, it reveals the modification from blue to dark gray. These modifications are the result of the typical adjustment of the dynamic balance of Fe2+ and Fe3+ in the polish layer.

Ferric Oxide Property

Melting point 1538°C
density 5.24
Fp >230 °F
storage temp. 2-8°C
solubility It is soluble In Warm Hydrochloric Acid, Slightly Soluble in Sulfuric Acid.
form pieces
color black
Specific Gravity5.1~5.2
Water Solubility INSOLUBLE


Ferric Oxide Uses

  1. Ferric oxide is a not natural pigment utilized as an antirust pigment in the paint market. It is also utilized as a tinting agent for rubber, artificial marble, and also ground terrazzo, as a tinting representative and also filler for plastics, asbestos, synthetic leather, and leather sprucing up paste, as a polishing agent for precision tools and also optical glass, and also as a basic material for producing ferrite components of magnetic materials. delay.
  2. Fe2O3 is made use of in the digital sector, communication makers, tvs, computers and various other magnetic products, as well as line result transformers, changing power supplies as well as ferrite cores with high U and high UQ.
  3. Ferric oxide is utilized for coloring the sugar finish of numerous tablets and also pills.
  4. Ferric oxide is utilized as a pigment for antirust paints. Due to the fact that the mica iron oxide antirust paint made of this product has excellent water penetration resistance as well as excellent antirust efficiency, it can change red lead.
  5. Ferric oxide is made use of as food red pigment. It is made use of in red bean rice and konjac flour food in Japan. Used to identify bananas that have actually been treated with a preservative to reduce the stalk. The USA is primarily used for feline food, canine food as well as product packaging materials.
  6. Ferric oxide is primarily used for the transparent coloring of coins, yet also for the coloring of paints, inks and also plastics.
  7. Ferric oxide is primarily utilized as magnetic materials, pigments, brightening agents, drivers, etc, as well as is additionally utilized in telecommunications and also instrumentation sectors.
  8. Ferric oxide is extensively used in the coloring of paint, rubber, plastic cosmetics, architectural great grinding materials, precision equipment tools, optical glass, enamel, stationery, leather, magnetic alloys and progressed alloy steel.

Ferric Oxide Method to Reduce Viscosity

Due to the different particle morphology and surface chemical properties of ferric oxide, it has always been the biggest cause of viscosity problems for coating enterprise formulators. Different from other equiaxed crystal systems (spherical or cubic), ferric oxide is acicular crystal, and its acicular aspect ratio is also different, which determines the degree of yellow phase of its appearance. Because of the needle-like crystal form, ferric oxide particles exhibit greater flow resistance than most spherical iron oxide particles, so the viscosity is naturally higher in most coating systems. This is determined by the particle morphology of ferric oxide.

All components of a coating have an effect on viscosity, and selecting the proper pigment is a key factor in obtaining the desired viscosity characteristics. The move toward high-solids, low-volatile organic compound (VOC) coatings has led to the need for new types of pigments, including iron oxides, allowing designers greater flexibility in formulating. Therefore, ferric oxide pigments with lower viscosity help to meet this demand.

CN201711389688.7 provides a method that can quickly reduce the viscosity of ferric oxide without adding any metal ions or oxides, as follows:

In a stainless steel reaction tank with a volume of 10 liters, add about 3 liters of tap water in advance, and then turn on the strong agitator for stirring, and then put 600 grams (dry basis) of the ferric oxide 313 filter cake material directly produced in the industry in batches Add it to form a slurry, continue to add water to control the slurry concentration at about 12%, and raise the temperature of the feed liquid to 70-75 degrees and keep it, then slowly add 10% concentration of dilute alkali to control the pH at 9.0- Between 9.5, control the stirring speed at 350-400 rpm. After stirring for 1 hour, start to take out a small amount of sample (about 10 grams) for analysis and testing, then continue stirring, and then take samples every 1 hour. The sample taken out was filtered and rinsed up to the standard, and the filter cake was placed in an oven at 110°C for drying, and then pulverized by a micro pulverizer for analysis and testing.

The Preparation Method of Ferric Oxide

CN103833085A gives a sort of preparation technique of high-purity ferric oxide, consists of the following steps:
1) Dissolve each gram of ferric ammonium sulfate consisting of magnesium and zinc in 0.667 ~ 0.889 ml of deionized water;

2) Add concentration to the option of step 1) under stirring state and also be the ammoniacal liquor of 14mol/L, every gram of step 1). in the ferric ammonium sulfate containing magnesium, zinc corresponds to 0.1ml of ammoniacal liquor in this step 2); Then there is precipitation, filter;

3) adding concentration to the filtrate in step 2) is the ammoniacal liquor of 14mol/L under the state of stirring, rises to 9~10 until the solution pH value; Leave standstill until there is no longer precipitate to separate out, with 80 DEG C of precipitate Wash with hot water until there is no ammonia smell, and the water phase is neutral pH=7.

4) in the suspension liquid that obtains in step 3), adding concentration is the formic acid solution of 10mol/L, and boil, every gram of step 1) contains magnesium, zinc ferric ammonium sulfate corresponding to 0.167~0.322ml in this step 4) formic acid solution;

5) Wash the precipitate in step 4) with 80°C hot water until there is no formic sour smell, and the aqueous phase has a neutral pH=7.

6) After centrifuging the precipitate, the precipitate is dried, crushed, then placed in a crucible, burned at 1000°C for 8 hours, and cooled.

About Products:
If you need Ferric Oxide as a cosmetic raw material, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced Ferric Oxide manufacturer and supplier, ZSpharmac will provide Ferric Oxide raw materials to customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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