About Iron Oxide Fe2O3 Powder:
Iron (III) oxide or iron oxide is an inorganic compound with the molecular formula Fe2O3. It is one of the three main oxides of iron, and the other two are rare forms of iron oxide (II) and natural magnetite iron oxide (II, III).
 
Iron oxide or iron trioxide with the general formula Fe2O3 is an inorganic compound known to be one of the three main oxides of iron naturally present in a mineral called magnetite. When iron oxide is used as a suspension in solutions and applications in the fields of biomedicine, agriculture and the environment, it has unique super magnetic properties and easy separation methods. The advantage of iron oxide powder is that it can be modified with a variety of inorganic and organic compounds (such as starch, polyelectrolyte and non-ionic detergent) according to its main surface chemical potential so that it can be used for more applications. Iron oxide is considered to be the most common magnetic particle and powder used in biomedical applications by applying an external magnetic field.
 
Iron oxide is a compound with ferromagnetic properties. When placed in an external magnetic field, the compound is magnetic. When they are obtained in a controlled size and crystal morphology, this property proves to be the desired characteristic. Iron oxide fine particles have become the focus of attention due to their low toxicity, magnetic properties, and convenient separation methods in medical diagnosis and magnetic resonance imaging (MRI). The application of iron oxide on the macro scale and its reactivity are decisive factors, but when available in smaller sizes in the micron and nano scales, they exhibit spontaneous combustion. As a semiconductor material, iron oxide has negative temperature efficiency of resistance. Feel free to send an inquiry to get the latest price if you would like to buy Iron Oxide Fe2O3 Powder in bulk.

Performance of Iron Oxide Fe2O3 powder：

Iron oxide red to reddish brown powder. Odorless. Insoluble in water, organic acids and organic solvents. Soluble in inorganic acids. There are two types: α-type (positive magnetic) and γ-type (diamagnetic). The fineness of dry-produced products is generally below 1μm. Stable to light, heat and air. It is more stable to acid and alkali. Strong coloring power. The relative density is 5.12～5.24. The lower the content, the lower the relative density. Refractive index 3.042. Melting point is 1550℃, decomposes at about 1560℃.

Technical Parameter of Iron Oxide Fe2O3 powder：
 

How is Iron Oxide Fe2O3 Powder produced?
There are wet and dry methods for preparing Iron Oxide Fe2O3. Wet-process products have fine crystals, soft particles, easy to grind, and easy to use as pigments. Dry-process products have large crystals and hard particles, which are suitable for magnetic materials, polishing and abrasive materials.
1. Wet method
Quickly react a certain amount of 5% ferrous sulfate solution with excess sodium hydroxide solution (the alkali excess is required to be 0.04～0.08g/mL), and pass in the air at room temperature to make it all become reddish-brown ferric hydroxide colloidal solution, As the nucleus of deposited iron oxide. Take the crystal nucleus as the carrier, use ferrous sulfate as the medium, and pass in the air. At 75～85℃, in the presence of metallic iron, the ferrous sulfate reacts with oxygen in the air to form iron oxide (ie iron red) and deposits on the crystal nucleus, The sulfate radicals in the solution reacts with the metallic iron to regenerate ferrous sulfate, and the ferrous sulfate is oxidized to iron red by air to continue to deposit so that the circulation to the end of the whole process will generate red iron oxide.
2. Dry method
Nitric acid reacts with iron to form ferrous nitrate, which is cooled and crystallized, dehydrated and dried, then ground and calcined at 600-700°C for 8-10 hours, washed with water, dried, and pulverized to obtain iron oxide red product. Iron oxide yellow can also be used as a raw material to obtain red iron oxide after calcination at 600～700℃.
 
Applications of Iron Oxide Fe2O3 Powder:
1. Iron industry
The overwhelming application of iron(III) oxide is as the feedstock of the steel and iron industries, e.g. the production of iron, steel, and many alloys.
2. Polishing
A very fine powder of ferric oxide is known as “jeweler’s rouge”, “red rouge”, or simply rouge. It is used to put the final polish on metallic jewelry and lenses, and historically as a cosmetic. Rouge cuts more slowly than some modern polishes, such as cerium(IV) oxide, but is still used in optics fabrication and by jewelers, for the superior finish it can produce. When polishing gold, the rouge slightly stains the gold, which contributes to the appearance of the finished piece. Rouge is sold as a powder, paste, laced on polishing cloths, or solid bar (with a wax or grease binder). Other polishing compounds are also often called “rouge”, even when they do not contain iron oxide. Jewelers remove the residual rouge on jewelry by use of ultrasonic cleaning. Products sold as “stropping compounds” are often applied to a leather strop to assist in getting a razor edge on knives, straight razors, or any other edged tool.
3. Pigment
Two different colors at different hydrate phases (α = red, β = yellow) of iron(III) oxide hydrate; they are useful as pigments.
Iron(III) oxide is also used as a pigment, under the names “Pigment Brown 6”, “Pigment Brown 7”, and “Pigment Red 101”. Some of them, e.g. Pigment Red 101 and Pigment Brown 6, are approved by the US Food and Drug Administration (FDA) for use in cosmetics. Iron oxides are used as pigments in dental composites alongside titanium oxides. Hematite is the characteristic component of the Swedish paint color Falu red.
4. Magnetic recording
Iron(III) oxide was the most common magnetic particle used in all types of magnetic storage and recording media, including magnetic disks (for data storage) and magnetic tape (used in audio and video recording as well as data storage). Its use in computer disks was superseded by cobalt alloy, enabling thinner magnetic films with higher storage density.
5. Photocatalysis
α-Fe2O3 has been studied as a photoanode for solar water oxidation. However, its efficacy is limited by a short diffusion length (2-4 nm) of photo-excited charge carriers and subsequent fast recombination, requiring a large overpotential to drive the reaction. Research has been focused on improving the water oxidation performance of Fe2O3 using nanostructuring, surface functionalization, or by employing alternate crystal phases such as β-Fe2O3.
6. Medicine
Calamine lotion, used to treat mild itchiness, is chiefly composed of a combination of zinc oxide, acting as astringent, and about 0.5% iron(III) oxide, the product’s active ingredient, acting as an antipruritic. The red color of iron(III) oxide is also mainly responsible for the lotion’s pink color.

Storage Condition of Iron Oxide Fe2O3 powder：

Iron Oxide Fe2O3 powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Cerium Oxide Fe2O3 powder：
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Iron Oxide Fe2O3 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Iron Oxide Fe2O3 powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

About Manganese Oxide Mn2O3 :
Manganese(III) oxide is an oxide with a chemical formula of Mn2O3 and a molecular weight of 157.88. What is the name of Mn2O3? Manganese oxide or Manganese(III) oxide. Manganese(III) oxide is Black cubic crystal. The relative density is 4.50.Is Mn2O3 soluble in water? Insoluble in water, acetic acid and ammonium chloride solution, soluble in other inorganic acids. Is Mn2O3 acidic or basic? The oxide in the lower oxidation state of a metal is basic and in the higher oxidation state of the metal it is acidic. For this reason Mn2O3 is basic and Mn2O7 is acidic. It dissolves in cold hydrochloric acid to form a brown solution, turns into a red solution in hot dilute sulfuric acid or concentrated sulfuric acid, decomposes into MnO₂ and manganese nitrate in hot nitric acid, and decomposes into Mn3O4 by heating and releases O₂. RBOSCHCO is a trusted global Manganese Oxide Mn2O3 supplier. Feel free to send an inquiry about the latest Manganese Oxide price at any time.
 
Manganese(III) oxide exists in two forms: α-Mn2O3 and γ-Mn2O3. What is the charge of Mn in Mn2O3? +3. What is the oxidation number of manganese in MnO4-, Mn2O3, and MnO2? In MnO2, manganese is in +4 oxidation state and in Mn2O3, manganese is in +3 oxidation state. The α-type is obtained by decomposing divalent manganese nitrates, carbonates or chlorides, and hydrides in the air to 600-800℃; the γ-type is obtained by heating MnO2 in a vacuum at 500℃ for 78 hours, or It is produced by γ-MnO(OH) dehydration. Feel free to send an inquiry to get the latest price if you would like to buy Manganese Oxide Mn2O3 in bulk.

If you wnat to know Mn2O3 powder price, please send inquiry to sales1@rboschco.com

Performance of Manganese Oxide Mn2O3 Powder :
Manganese trioxide also called Manganese(III) Oxide, has high purity, small particle size, uniform distribution, specific surface area, high surface activity, low apparent density.

Technical Parameter of Manganese Oxide Mn2O3 Powder :

How is Manganese Oxide Mn2O3 produced?
1. Preparation of α-Mn2O3
The oxide of α-Mn2O3 manganese oxide is further oxidized or reduced or prepared by heating the divalent manganese salt in the air at 600-800°C. When using manganese nitrate hexahydrate as raw material, it is necessary to heat the heated solid at 190°C, crush and heat it at 650°C in advance.
2. Preparation of γ-Mn2O3
Under vigorous stirring, add 34 mL of 3% hydrogen peroxide solution to 350 mL of a solution containing 2.2 g of manganese sulfate tetrahydrate, and then add 50 mL of 0.2 mol·dm-3 ammonia to generate γ-MnO (OH). The dark brown or black suspension that releases oxygen will boil quickly. After boiling for 4 minutes, filter and separate, wash the solid with 1.5L hot water, add it to a phosphorus pentoxide vacuum dryer, and dry it below 100°C to obtain γ-MnO(OH). The γ-MnO (OH) was carefully dehydrated at 250° C. under reduced pressure for 3 days to produce γ-Mn2O3. As much as possible, γ-MnO2 was heated at 500°C for 78 hours under reduced pressure to prepare γ-Mn2O3.

Applications of Manganese Oxide Mn2O3 :
1. Manganese trioxide can be used in the printing and dyeing process of fabrics;
2. During the oxidation process of carbon monoxide and organic matter. Manganese (III) oxide can also be used to synthesize soft magnetic materials.
3. Manganese trioxide is an important basic material for the synthesis of lithium-ion batteries;
4. Manganese (III) oxide can be used in the printing and dyeing process of fabrics;
5. Manganese oxide (III) can efficiently catalyze and oxidize organic oxides and nitrogen oxides, and catalyze organic conversion reactions;
6, Manganese oxide (III) oxide soft magnetic material precursor;
7. Manganese oxide is used as a raw material for the synthesis of electrode materials for lithium-ion batteries.

Storage Condition of Manganese Oxide Mn2O3 Powder :

Nano manganese oxide Mn2O3 powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Manganese Oxide Mn2O3 Powder :
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Manganese oxide Mn2O3 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Manganese oxide Mn2O3 powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

About Zinc Oxide ZnO powder:
Zinc oxide is an inorganic substance, the chemical formula is ZnO. Insoluble in water, soluble in acids and strong bases.
Zinc oxide is a white powder or hexagonal crystal. Smells, tasteless and sand-free.It turns yellow when heated and turns white again when cooled. It sublimates when heated to 1800℃. The hiding power is half that of titanium dioxide and zinc sulfide. The tinting power is twice that of basic lead carbonate. Zinc oxide is soluble in acid, concentrated hydroxide base, ammonia water and ammonium salt solution, but insoluble in water and ethanol.
Zinc oxide is a famous white pigment, the common name is zinc white. It has the advantage of not being black in the presence of H2S gas because ZnS is also white. When heated, ZnO gradually changes from white and light yellow to lemon yellow, and when cooled, the yellow will recede. Using this characteristic, it is mixed into paint or added to a thermometer to make a color-changing paint or thermometer. Because ZnO has the convergence and certain sterilization ability, it is often used in medicine to make an ointment. ZnO can also be used as a catalyst. Zinc oxide ZnO is used as an additive in many materials and products, including cosmetics, food supplements, rubber, plastics, ceramics, glass, cement, lubricants, coatings, ointments, adhesives, sealants, pigments, food, batteries, ferrite, flame retardants, and above all – adhesive tape. Although it occurs naturally as the mineral zinc, most zinc oxides are produced synthetically. Feel free to send an inquiry to get the latest price if you would like to buy Zinc Oxide ZnO powder in bulk.

Performance of Zinc Oxide ZnO powder：

Appearance and properties: white powder or hexagonal crystal. No smell, no taste, no sand. It turns yellow when heated, and turns to white again after cooling, and sublimates when heated to 1800℃. The hiding power is half that of titanium dioxide and zinc sulfide. Coloring power is twice that of basic lead carbonate.
Solubility: soluble in acid, concentrated alkali hydroxide, ammonia water and ammonium salt solution, insoluble in water and ethanol.

Technical Parameter of Zinc Oxide ZnO powder：

How is Zinc Oxide ZnO powder produced?
Direct method:
1. Calcined by zinc carbonate.ZnCO3 = ZnO + CO2 write
2. from the calcination of zinc hydroxide decomposition.
3. smelting from crude zinc oxide into zinc, and then through high-temperature air oxidation from.
4. by the oxidation of molten zinc.
5. The methods used are indirect method with zinc ingot as raw material (also known as the French method), a direct method with zinc ore as raw material (also known as the American method) and wet method.
Indirect method:
Reaction equation: 2Zn+O2=2ZnO
Operation: The zinc ingot obtained by electrolysis method is heated to 600 ~ 700℃ after melting, placed in the high-temperature crucible, melting and gasification at 1250 ~ 1300℃, and then imported into hot air for oxidation. The generated zinc oxide is cooled and separated by the cyclone, and the fine particles are captured with cloth bags, that is, the finished zinc oxide is produced.
The direct method:
Reaction equation:
C+O2=CO2
CO2+C=2CO
ZnO+CO=Zn (vapor) +CO2
Zn (vapor) +CO+O2=ZnO+CO2
Operation method: the roasting zinc ore powder (or materials containing zinc), anthracite (or coke), limestone according to the ratio of 1:0. 5:0.05 prepared into a ball. After reduction smelting at 1300℃, zinc oxide in the ore powder is reduced to zinc vapor, which is then oxidized by air. The resulting zinc oxide is captured to produce zinc oxide finished products.
Wet method: Zinc sulfate is produced by reacting zinc ash with sulfuric acid, and then it is reacted with sodium carbonate and ammonia respectively. Zinc oxide is produced by using zinc carbonate and zinc hydroxide as raw materials. The reaction equation is as follows:
Zinc + – H2SO4 = ZnSO4 + H2 write
ZnSO4 + Na2CO3 = ZnCO3 left + Na2SO4
ZnSO4 nh3 · H2O + 2 = zinc (OH) 2 left + (NH4) 2 so4
Zinc oxide was prepared from zinc carbonate by washing, drying, calcining and crushing.Write ZnCO3 – > ZnO + CO2
Zinc oxide was prepared from zinc hydroxide by water washing precipitation, drying, calcination, cooling and grinding.Zinc (OH) 2 – > ZnO + H2O

Applications of Zinc Oxide ZnO powder:
Zinc oxide is a common chemical additive, which is widely used in plastics, silicate products, synthetic rubber, lubricants, paint coatings, ointments, binders, food, batteries, flame retardants and other products. The energy band gap of zinc oxide and the exciton can be large, high transparency, excellent normal temperature light-emitting properties, and are used in liquid crystal displays, thin-film transistors, light-emitting diodes such as a semiconductor. In addition, the zinc oxide of microparticles has also begun to play a role in the relevant fields as a nanomaterial.
1. Mainly used in rubber or cable industries, tonic and active agents, also do colorants and fillers for white gums, used as sulfurization in neoprene, etc.
2. In the fertilizer industry, the raw material gas is used in sulfur
3. Mainly used as white pigments, rubber vulcanized active agents, organic synthetic catalysts, desulfurizers for electrostatic copying, pharmaceutical, etc.
4. Desulfurization for synthetic ammonia, petroleum, the natural gas chemical raw material gas
5. Used as the matrix of analytical reagents, reference reagents, fluorescent agents and photosensitive materials
6. Used in electrostatic wet copying, dry transfer, laser fax communication, electronics electrostatic record and electrostatic platelet
7. Used in plastic industries, sunscreen cosmetics series products, special ceramic products, special functional coatings and textile hygiene processing, etc.
8. Widely used in the lack of industrial raw material gas such as ammonia, methanol and hydrogen production, oil, the water purification process
9. Used as a convergent medicine, used to make an ointment or rubber paste
10. used as white pigments for printing, paper, matches and pharmaceutical industries. A vulcanized active agent, reinforcing agent and colorant of natural rubber, synthetic rubber and latex are used in the rubber industry. It is also used in the manufacture of pigment zinc chrome yellow, zinc acetate, zinc carbonate, zinc chloride, and the like. Further, it is also used in electron laser materials, phosphor, feed additives, catalysts, and magnetic materials to produce feed additives to zinc supplements in feed processing.
11. Inorganic white pigment. It has no toner and titanium dioxide and a vertical powder. It is widely used in ABS resin, polystyrene, epoxy resin, phenolic resin, amino resin, and polyvinyl chloride and paint and ink coloring. In addition, the rubber industry can also be used as a vulcanizing active agent, a reinforcing agent, and a colorant. It is also used in the production of paint cloth, cosmetics, enamel, paper, leather, matches, cables, etc. It is also available for printing, glass industry, pharmaceutical industry, etc. It is also used as a desulfurizing agent for synthetic ammonia. Also used as electronic laser materials, phosphor, feed additive, magnetic material manufacturing, etc.
12. Nutritional supplement (zinc strengthening agent).
13. Zinc oxide is a feed nutrient reinforcement agent.
14. Mainly used as a reinforcing agent for rubber or cable to make rubber have good corrosion resistance, tear-resistance and elasticity. It is also used as a vulcanized activator of natural rubber, white rubber colorant and a filler, a vulcanizing agent of neoprene. The particle fine (about 0.1 μm of particle size) can be used as a light stabilizer of plastic such as polyolefin or polyvinyl chloride.
15. Desulfurization for synthetic ammonia gas.
16. Use as a paint of paint and rubber filler, medical for use in microcanoes, zinc paste, rubber paste, etc.
17. Suitable for supplements of zinc in feed processing.
18. Mainly used as white pigments, rubber vulcanized active agents, reinforcing agents, organic synthesis catalysts, desulfurizers.
19. Desulfurization for synthetic ammonia, petroleum, natural gas chemical gas.
20. Used as the matrix of analytical reagents, reference reagents, fluorescent agents, and photosensitive materials.
21. Mainly used for rubber or cable industries, tonic and active agents, also made of white gums, which are used as a vulcanizing agent in neoprene.
22. The University of Japan is developed by zinc oxide nanoparticles. Zinc oxide is often used in the production of baby talcum powder and other products, is a non-toxic inorganic, and the human body does not produce a reactive reaction, and there is high security. In addition, the volume of zinc oxide nanoparticles has a small volume and has the advantage of do not hinder cell activity.

Storage Condition of Zinc Oxide ZnO powder：
Zinc Oxide ZnO powder should be store in a cool, ventilated warehouse. Keep away from fire and heat. should be kept away from oxidizer, do not store together. The storage area should be equipped with suitable materials to contain the leakage.
 

Packing & Shipping of Zinc Oxide ZnO powder：
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Zinc Oxide ZnO powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Zinc Oxide ZnO powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.