Tag: dioxide

What is Manganese Dioxide MnO2 Powder?

Introduction to Manganese Dioxide, MnO2 powder Manganese dioxide Also known as black manganeseoxide and manganese-peroxide. It is an oxide form tetravalent mannese. The chemical formula for MnO2 is below. MnO2 has a chemical formula. Its fHm is 298K. Natural MnO2 is found in Pyrolusite. It’s a black, rhombic crystal and black-brown powder. It is amphoteric manganese dioxide and has a tetrahedral lattice. It’s insoluble in water, nitric acid, and oxygen. However it releases oxygen and forms manganese oxide in hot concentrated sulfuric acids. When it is fused to caustic soda, the oxidant releases carbon dioxide and forms permanganate. Manganese oxide is an oxidant that can be used to cause explosions and combustion by friction and co-heating of organic matter and other oxidable substances, such as sulfur, the sulfide or phosphide. It is easily reduced by strong oxidants, such as hydrogen peroxide. If MnO2 in heated air is above 480, it will be converted to Mn2O3 and then Mn3O4 if heated above 9000. MnO2 is used widely in steelmaking and glass production, as well ceramics and dry cells.

You can find it in the forms of hard manganese and pyrolusite. This can be obtained from pyrolusite. Alternatively, it can be made by heating manganese nitrate salt to decompose or electrolytically manganese dioxide salt. G -Mno2 has an active component and is suitable for use as a catalyst in the production of batteries that eliminate polarization. The use of manganese dioxide in its various forms is possible.

Manganese Dioxide powder MnO2 Powder: Physicochemical properties
Find out more manganese dioxide Oxygen atoms can be found at the corner of the Octahedron, while manganese is located in the center. An Octahedron connects to make a single- or double-chain, which forms the tunnel structure of either the gap or octahedron. Oxidizability Manganese dioxide is an organic non-salt, amphoteric oxide and does not react with acid or base. The presence of reducing agent can cause oxidizing. To make manganese oxide, you can heat hydrogen to 1400K and add manganese dioxide. In order to produce brown or black manganese oxide, manganese dioxide can be heated in ammonia gases streams. Concentrated hydrochloric acid is used to react manganese dioxide with chlorine gas.

The presence of strong oxygenants can also cause it to exhibit Reductibility . When the manganese dioxide and potassium carbonate melt together, it can be made into dark green melt. After cooling, one can also get six forms of potassium manganate. This metal is strong in acid. Although it does not cause combustion by itself, it can be used to aid in the combustion of other flammable items.
Manganese Dioxide MnO2 Powder Properties
Additional Names manganese oxide, MnO2 powder
No. 1313-13-9
Formula compound MnO2
Molecular Weight 86.94
Appearance black powder
Melting Point 535degC
Boiling Point N/A
Density 5.03g/cm3
Solubility in water Unsolvable
Get the exact Mass 86.9279
Manganese Dioxide MnO2 CAS 1313-13-9

Manganese Dioxide powder MnO2 has many applications
1. Manganese dioxide is an excellent decolorizing agent used in glass production. This can convert low ferric to high ferric, turning blue-green into weaker yellow.
2. This is used in electronic industries to make manganese zinc ferrrite magnetic materials.
3. This is used in the manufacture of iron and manganese alloys and in the heating agents in the casting process.
4. Gas masks that absorb carbon monoxide.
5. It is used in chemical industries as an oxidant or catalyst for organic production, paint and ink desiccant.
6. It is used as an acceleration in the match industry as well as as a raw ingredient for glaze medicine for ceramics, enamel, manganese and other metal salts.
7. It is used for dyeing, water purification and iron removal.
8. An excellent battery depolarizing agent is electrolytic manganese dioxide. It has a higher discharge rate than the dry battery made from natural manganese dioxide. Also, the small size, low activity, and long lifespan make it an important material in the battery industry.
9. Because of its excellent catalytic and oxidation/reduction capabilities, as well as the ion and adsorption properties, electrolytic manganese dioxide is an outstanding water purification material. This is a superior water purification material than activated charcoal, zeolite and any other. It can also remove color and metals more effectively.

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Introduction to Manganese Dioxide, MnO2 powder Manganese dioxide Also known as black manganeseoxide and manganese-peroxide. It is an oxide form tetravalent mannese. The chemical formula […]

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The applications of Manganese Dioxide Powder

Overview of Manganese Dioxide Pulver
Manganese dioxide This inorganic compound has the chemical formula of MnO2. It is found in nature in the form pyrolusite. Physical properties: Amorphous black powder or black orthorhombic black crystals. Solubility in water, weak acid, weak basis, and cold sulfuric acid. Heating and crushing concentrated hydrochloric acids to produce chlorine.
MnO2 (alpha polymorph) is able to bind various atoms (and even water molecules) in “tunnels”, or “channels”, between the manganese dioxide octahedrons. People are interested in MnO2 as a cathode to lithium ion battery batteries.
Amphoteric oxide manganese dioxide. It is a stable, black powdery substance at room temperature that can be used as depolarizer to dry batteries. It is commonly used in laboratory to produce chlorine by its oxidizing property and the action of concentrated hydrogen chloric acid. Manganese oxide is an acid medium strong oxidant. Manganese dioxide is an [MnO2]-octahedron. The top of the Octahedron has the oxygen atom and the bottom is the octahedron. [MnO2] Octahedrons may be joined together to form single strands or double strands. These chains, together with other chains, form an octahedral (or hexagonal close packed) or square close-packed tunnel structure.
Manganese dioxide can be described as an amphoteric oxygen. The perovskite structures also contain corresponding salts such as BaMnO3 / SrMnO3 which are obtained through a compound react in a molten acid system. Also, there is manganese Tetrachloride.
Manganese Dioxide MnO2 CAS 1313-13-9
What are the uses for Manganese Dioxide Pulver?
Useful as a dry battery depolarizer, catalyst and oxidant in synthesis, coloring agent, decolorizer and iron removal in the enamel and glass industries. It is used to make metal manganese, special alloys, ferromanganese casters, gas masks and electronic materials ferrites. It is also used in rubber manufacturing to increase rubber’s viscosity. It can also serve as a catalyst for chemical experiments.
Organic synthesis
Organic chemistry uses manganese dioxide extensively. Manganese dioxide can be used to make oxides in a variety of forms. Manganese dioxide can be described chemically as MnO2*x[H2O]n. This is because it has multiple crystal forms. However, n may be greater than 0. You can make manganese dioxide by reacting potassium permanganate with manganese sulfate at different pH.
Conversion of alcohols into aldehydes is one of the special chemical reactions that manganese dioxide performs. Manganese dioxide won’t oxidize alcohols that have a double bond.
No matter how active the product, it won’t be oxidized. Manganese dioxide is capable of oxidizing diols into dialdehydes. Other manganese dioxide is capable of many reactions, including the oxidization of aromatics, trils, and amines.
Laboratory use
As a catalyst in the decomposition and production of oxygen from hydrogen peroxide; as a catalyst in the heating of potassium chlorate to heat to create oxygen; thermite reaction to produce manganese. It is used in the production of pigments such as yellow glass and other colors. To produce chlorine, react with hot concentrated hydrochloric Acid in the air; to produce potassium manganate in the reaction of potassium permanganate in the ground.
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Overview of Manganese Dioxide Pulver Manganese dioxide This inorganic compound has the chemical formula of MnO2. It is found in nature in the form pyrolusite. […]

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What is MnO2 Powder?

What is it? MnO2 Oil ? Manganese dioxide has an organic compound chemical formula of MnO2. It can be found as a black amorphous crystal or black orthorhombic stone. It is insoluble when it comes into contact with water, weak acids, weak bases, nitric and cold sulfuric. Used as an oxidant, rust removal, and catalyst in the preparation of manganese sodium salts.
MnO2 Powder’s characteristics
1. Acidity and acidity: Manganese dioxide is an amphoteric dioxide. This is a stable, black powdery solid at ambient temperature that can be used as a polarizer for dry batteries. Its oxidizing ability is frequently used in laboratories. In order to produce chlorine gas, it reacts with concentrated HCl.
2. Manganese dioxide can be described as an amphoteric ore, and there are also corresponding salts such as BaMnO3/SrMnO3 (obtained from a compound reaction in an alkali system), [1], and manganese trichloride. .
3. The reaction of a reducing agent with an oxidizing agent is known as oxidizing. For example, manganese dioxide is heated to 1400K using a hydrogen stream to make manganese oxide. Manganese dioxide can then be heated to brown-black manganese triooxide by heating it in an ammoniastream. To make chloride Manganese and chlorine, concentrated hydrochloric acid is used to react with manganese dioxide.
4. The strong oxidants also have a reduced form. When manganese dioxide and potassium carbonate or potassium nitrate are combined and melted, you can get a dark green melting solution. After cooling, the melt can also be dissolved into water and cooled to produce potassium manganate. It is a strong oxidant when used in acidic media.
5. It is a strong antioxidant that doesn’t burn by itself. However, it supports combustion and shouldn’t be mixed with flammable material.
6. As a catalyst [1] for the reaction of potassium chlorate (KClO3) decomposition, and hydrogen peroxide(hydrogen peroxide H2O2) decay.
Manganese Dioxide Properties
Other Titles manganese oxide, MnO2 powder
No. 1313-13-9
Combination Formula MnO2
Molecular Weight 86.94
Appearance Black Powder
Melting Point 535 degC
Boiling Point N/A
Density 5.03 g/cm3
Solubility of H2O Insoluble
Exact Mass 86.9279
Manganese Dioxide MnO2 CAS 1313-13-9
Application of MnO2 Powder
1.Organic Synthesis
Organic chemistry uses manganese dioxide extensively. Manganese oxide can be used in various forms. This is because manganese dioxide has multiple crystalline forms. The chemical formula for manganese dioxide is MnO2x(H2O),n. Where x can be between 0 to 0.5 and n may be greater than 0. You can make manganese dioxide by reacting potassium permanganate with manganese sulfate at different pH.
Manganese dioxide has a specific chemical reaction that converts alcohols to aldehydes. Even if alcohols have double bonds they won’t be oxidized with manganese dioxide. No matter how active a product may be, it will not again be oxidized. Manganese dioxide can oxidize diols into dialdehydes. You can use manganese dioxide to oxidize amines as well as aromatics and triols.
2.Laboratory Use
It is used in the decomposition of hydrogen peroxide to produce oxygen. It can be used to make yellow glass, pigments, etc. To produce chlorine, react with hot concentrated hydrochloric Acid in the oven; then react with molten potassium potash in the atmosphere to make potassium manganate. In the decomposition process of potassium permanganate manganese dioxide serves as high Potassium Manganate autocatalyst.
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What is it? MnO2 Oil ? Manganese dioxide has an organic compound chemical formula of MnO2. It can be found as a black amorphous crystal […]

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The Applications of MnO2 Powder

How do you define it? MnO2 Oil ? Manganese dioxide has an inorganic chemical compound, MnO2. It comes in the form of a black powder, or an orthorhombic crystal. It is not soluble in water, weak acid or weak base and cold sulfuric acids. Used as an oxidant and rust remover.
These are some of the properties of MnO2 Pulver
1. pH and Alkalinity. Manganese dioxide is both an acidic and alkalinic oxide. This is a stable, black powdery liquid at room temperatures and can be used for depolarizing dry batteries. The laboratory uses its oxidizing ability to make chlorine gas. It acts with concentrated HCl.
2. Manganese dioxide can be described as an amphoteric ore, with corresponding salts such as BaMnO3 / SrMnO3 (obtained through a compound reaction within a molten acidi system [1], also known by the name manganese tetrachloride). .
3. The reaction of a reducing agent with an oxidizer is known as oxidizing. In order to produce manganese oxide (manganese dioxide), heat the manganese in a hydrogen stream at 1400K. Then, in order to create manganese dioxide, heat the manganese in ammonia streams to melt manganese bioxide. Finally, react with concentrated hydrochloric acids to form chloride manganese and chlorine.
4. The strong oxidants also have a reduced form. When manganese dioxide and potassium carbonate or potassium nitrate are combined and melted, you can get a dark brown melt. After the melt is dissolved in water, it can be cooled and used to produce potassium manganate which is a compound of high-valent manganese. It can cause severe oxidation in an acidic environment.
5. This is a powerful oxidant. It does not go out by itself and supports combustion.
6. It acts as a catalyst for the decomposition of potassium chlorate [KClO3] and hydrogen peroxide [H2O2]
Manganese Dioxide Properties
Other Titles manganese oxide, MnO2 powder
1313-13-9
Compound Formula MnO2
Molecular Weight 86.94
Appearance Black Powder
Melting Point 535 degC
Boiling Point N/A
Density 5.03 g/cm3
Solubility of H2O Insoluble
Exact 86.9279
Manganese Dioxide MnO2 CAS 1313-13-9
Application of MnO2 Pulver
1.Organic Synthesis
In organic chemistry, manganese dioxide has many uses. The chemical formula for manganese oxides can be expressed as MnO2x(H2O).n. This is because manganese dioxide has many crystalline forms. You can make manganese dioxide by reacting potassium permanganate with manganese sodium sulfate at different pH.
The conversion of alcohols and aldehydes is one chemical reaction that manganese dioxide has. No matter how double-bonded alcohols are, manganese dioxide won’t oxidize them. The product will not again be oxidized, no matter how active it may be. By using manganese dioxide, diols can become dialdehydes. You can use manganese dioxide to react with many other compounds, such as aromatics, amines, and trils.
2.Laboratory Use
When hydrogen peroxide decomposes to produce oxygen, it’s used as an catalyst. Useful for pigments, yellow glasses, and other purposes. To produce chloride, heat concentrated hydrochloric Acid in hot water. Also react in air with potassium hydroxide to create potassium manganate. Manganese dioxide is used to decompose potassium permanganate.
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How do you define it? MnO2 Oil ? Manganese dioxide has an inorganic chemical compound, MnO2. It comes in the form of a black powder, […]

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Application Fields of Manganese Dioxide

Chemical characteristics of manganese dioxide MnO2 Manganese oxide is the oxygen-atom at the top, and the manganese-atom in the octahedron. A single or double chain is formed when the [MnO2] Octahedron connects to the manganese. The face can either form a square-shaped dense product or a hexagonal dense one. The process of oxidizing manganese dioxide (non-salt-forming oxide and non-amphotericoxide) occurs when it comes into contact with reducing agents. For example, manganese dioxide can be heated to 1400K in a stream with hydrogen to make manganese oxide. Manganese dioxide can then be heated to brown-black magnese trioxide in a stream with ammonia. To get l chlorine manganese, chlorine, and water, concentrated hydrochloric acids are used to react the manganese.
It can also be reduced when it comes into contact with strong oxidants. When manganese dioxide and potassium carbonate or potassium nitrate are combined and melted, you can get a dark green melting solution. This can be dissolved into water and cooled to produce potassium manganate which is a compound containing hexavalent magnese. It is a strong acid medium oxidant. Strong oxidizer. It does not burn by it self, but supports combustion. Do not combine it with flammable substances.

The primary function of manganese dioxide MnO2
Manganese dioxide is mostly used in dry batteries as a depolarizing agents. Manganese oxide is also an excellent decolorizing agent for the glass industry. It is capable to oxidize low-valent iron sodiums into high-iron ones and make the glass blue-green a weaker yellow. Use in electronics industry to create manganese zinc ferrite magnetic materials. This is used as a raw ingredient in iron-manganese alloys in the steelmaking process and as a heat-increasing material in the casting industry. A gas mask absorbent that reacts with carbon monoxide. It is used in chemical industries as an oxidant and as a catalyst for organic synthesizing. It is also used in the match trade as a burning aid, as well as as a raw material for ceramics, enamel glazes and manganese sulfates. It’s also used for fireworks, water purification, iron removal, medicine and textile printing and dyeing.
Dilute hydrochloric Acid will not react with manganese dioxide. Concentrated hydrochloric acids have a large concentration of H+/Cl-, which has strong reducibility. It can be oxidized using MnO2 under heat to form Cl2. As the reaction progresses, it gradually decreases in H+ and Cl. As the reducibility decreases, MnO2 is unable to oxidize Cl- anymore. Dilute hydrochloric and manganese dioxide will not react. Hot concentrated sulfuric acids releases oxygen to form manganese-sulfate. Mix caustic soda, oxidant and co-melt to make manganate. It dissolves in acetone.
The electrolytic manganese oxide can be divided into three types: the alkaline manganese, mercury-free and alkaline type. The alkaline manganese is suitable to alkaline zinc batteries. The alkaline manganese is suitable to alkaline zinc batteries. A manganese dioxide battery.

Application fields for manganese dioxide MnO2
The best battery depolarizer is electrolytic magnese dioxide. It is a superior battery depolarizer than dry manganese dioxide batteries. It has large discharge capacities, high activity, small sizes, and long lives. It is therefore an important raw material for industry.
The main raw material for batteries is electrolytic manganese dioxide. However, it has been extensively used in other fields such as oxidizers and raw materials in manganese zinc ferrite soft magnetic materials. It is capable of strong catalysis and oxidation / decrease, as well as ion exchange, and adsorption. After treatment and molding, it is a water purification material with excellent performance. It is more resistant to metal removal than water filter media.

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Chemical characteristics of manganese dioxide MnO2 Manganese oxide is the oxygen-atom at the top, and the manganese-atom in the octahedron. A single or double chain […]

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Is MnO2 a powder?

What’s MnO2?
, which is the chemical abbreviation for manganese dioxide, stands for Manganese oxide. The amphoteric manganese dioxide can be used for depolarizing dry batteries. It is a black powdery, stable solid at room temperatures. The physical properties are black rhombic or amorphous crystal. Solubility in water, weak acid or weak alkali. To produce chlorine gas, the acid is heated and dissolves in concentrated chloric acid. The solubility of the compound is not easy to disperse in water, weak acid or weak base and in cold sulfuric acids. Purity: 96.6%,72%. Particle Sizes: 1-3um
How do you define it? MnO2 Use it for?
The best depolarizer for batteries is electrolytic manganese dioxide. Electrolytic manganese is a superior depolarizer to dry manganese dioxide batteries. This has the advantage of a larger discharge capability, high activity and comparatively short service lives. The battery industry has made electrolytic manganese dioxide a valuable raw material.
The primary source of battery batteries is physical electrolytic manganese dioxide. However, it has been used extensively in many other areas, including as an antioxidant in fine chemical production, and as a raw material for soft magnetic materials made of manganese zinc ferrite. The excellent performance of electrolytic manganese dioxide (EMD), a water purification filter material, is due to its catalytic, oxidation/reduction and ion exchange capabilities. EMD offers stronger metal and colour removal abilities than the more common water purification materials like activated carbon or zeolite.

How does Manganese Dioxide MnO2 get made?
Most manganese dioxide can be extracted from the natural mineral, pyrolusite. As raw materials, manganese carbonate can be used and pyrolusite. Leaching, leaching and neutralizing iron are some of the steps involved in the preparation manganese sulfurate solution. Electrolysis at high heat yields the crude product. The qualified crystal is then obtained by treating it with stripping and crushing, neutralizing, washing and drying. The manganese chloride solution can then be electrolyzed to produce fibrous manganese dioxide. Pyrolysis is also possible for manganese carbonate or manganese nutrate. These are prepared through direct oxidation (manganese suboxide) and oxidants like chlorine, sodium chlorate, and oxygen.

Chemical properties of manganese dioxide
Manganese dioxide can form tunnel structures in which an oxygen atom is at the corner of an OCTahedron. A manganese-atom atom is inside an OCTahedron. An [MnO2] OCTahedron is joined in the same edge and forms a single, double, or triple chain. This is done by stacking other chains together, creating a gap. Manganese dioxide, a non-salt and non-amphoteric type of oxide is not reactive with acid or other alkali. It oxidizes if it encounters a reducer. In order to create manganese, it is heated at 1400K in hydrogen flow. To make manganese, trioxide, heating manganese dioxide is done with ammoniagas flow. Exposure to strong oxidants can also cause it to show reduced properties. Mixing manganese dioxide with potassium carbonate or potassium nitrate/chlorate will result in a mixture that is melted. If the mixture is melted, it will produce a dark brown melt. The potassium permanganate compound can be made by cooling the melt with water. It’s a strong oxidant that reacts with acid. This oxidant is strong, and does not cause combustion. Avoid placing it near flammable material.

The cost of MnO2 powder
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What’s MnO2? , which is the chemical abbreviation for manganese dioxide, stands for Manganese oxide. The amphoteric manganese dioxide can be used for depolarizing dry […]

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Historical Information and Extraction Method of Holmium Oxide

What’s Holmium Oxide? Also known as holmium triooxide or holmium oxide is the chemical formula H2O3. The compound of the rare element holmium with oxygen, called Holmium Oxide is known as holmium trioxide. It’s as popular as dysprosium, and one of the most paramagnetic substances. The component of erbiumoxid minerals, holmium dioxide is also made up of holmium oxygen. The natural state of holmium dioxide often mixes with the trivalent oxides lanthanides. A specific process is needed to distinguish them. You can make special colored glass with holmium dioxide. Because of its sharp peak appearance, the visible absorption spectrum for glass and solutions containing holmium dioxide is often used as a reference point to calibrate spectrophotometers.

Crystal Structure Of Holmium Oxide

Although Holmium dioxide crystals are part of the cubic crystal structure, their structure is complex. Every unit cell is made up many atoms. The lattice constant at 1.06nm is quite large. This structure is typical for the oxides heavy rare earth element elements Tb2O3, Dy2O3,Er2O3, Tam2O3, Tam2O3, Ty2O3, E2O3, Tm2O3, Zm2O3, Yb2O3, Lu2O3, and Yb2O3. It has 7.4 m p thermal expansion coefficient.

History Information about Holmium Oxide

Marc de la Fontaine & Jacques Luis Sole discovered Holmia in 1878 when they observed an unusual absorption spectrum of an unknown metal. Pell Teodorcliff also discovered this element during the 1878 study of Erbium Oxide. Cliff was able to remove impurities using the method of Carl Gustav Mossander. Two types of impurities are found among them: the brown and the green. He called the brown substance “Holmia” after Stockholm and the “thulia” green substance. He later found out that the materials he had to separate were actually holmium and thulium, respectively.

Holmium Oxide

Manufacturing Process We will briefly describe the process of extracting holmium oxide: crushing minerals and grinding. Repeated use of the electromagnetic beneficiation technique is required to remove the holmium oxide from the ore. The pH of the acidic filtrate can be partially neutralized by sodium hydroxide, which will give it a pH range between 3-4. Hydroxide will form from the precipitation of thorium. Ammonium oxalate is then used to transform the rare earth salt insoluble into oxalate. An annealing process converts the oxalate to oxide. After the oxide has been dissolved in the nitric, the oxide of main ingredient cerium becomes insoluble in the nitric, which separates the cerium. Ion exchange is the best method to distinguish holmium dioxide from other rare earth elements. You first need to add the rare earthions onto an appropriate ion-exchange resin. Next, you will use a suitable complexing agent like ammonium citrate, or nitrilotriacetic Acid, to wash out any remaining rare earthions.

Holmium Oxide

– Application Range The yellow and red colors of Soviet diamonds, and Soviet glass can be enhanced by holmium dioxide. The spectrum has sharp peak absorption values of glass with holmiumoxide and holmiumoxid solution (usually perchloric acids solution). These glasses can be used for calibration purposes and they have been commercialized. Like rare earth elements like holmium, holmium dioxide can also be used as a catalyst, phosphor, and laser material. A holmium laser can emit pulsed light or continuous light and has a wavelength approximately 2.08 m. This laser is non-harmful to the eye and can be used for medicine, optical radar and wind speed measurement. Tungstenmolybdenummetals advanced materials Tech Co., Ltd. is a professional in holmium dioxide with over 12 year experience in chemical product research and development. Send us an inquiry if you’re looking for premium holmiumoxide.
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What’s Holmium Oxide? Also known as holmium triooxide or holmium oxide is the chemical formula H2O3. The compound of the rare element holmium with oxygen, […]

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Titanium Oxide TiO2 powder CAS 13464-67-7

About Titanium Oxide TiO2 powder:
Titanium Oxide TiO2 powder, also known as Titanium dioxide, is an important inorganic chemical pigment, mainly composed of Titanium dioxide. The titanium dioxide production process has a sulfuric acid method and chloride method of two process routes. It is widely used in coating, printing ink, paper making, plastic and rubber, chemical fiber, ceramics and other industries.
 
Among the commonly used white pigments, the relative density of titanium dioxide is the smallest, and the same mass of white pigments, titanium dioxide has the largest surface area and the highest pigment volume. The chemical properties of titanium dioxide are very stable, are a kind of acidic amphoteric oxide. Almost no reaction with other elements and compounds at room temperature, on oxygen, ammonia, nitrogen, hydrogen sulfide, carbon dioxide, sulfur dioxide are not effective, insoluble in water, fat, dilute acid and inorganic acid, alkali, only soluble in hydrofluoric acid. But under the action of light, titanium dioxide can take place a continuous REDOX reaction, has the photochemical activity. This kind of photochemical activity, under ultraviolet radiation anatase type titanium dioxide, is particularly obvious, this property makes titanium dioxide is some inorganic compounds of the photosensitive oxidation catalyst and some organic compounds of photosensitive reduction catalyst.
 
Titanium dioxide has Rutile type (Rutile R type) and Anatase type (A-type) two kinds of structure, Rutile crystal structure is dense, relatively stable, small optical activity, so good weather resistance, at the same time has A higher hiding power, color extinction. Titanium dioxide has semiconductor properties, its electrical conductivity increases rapidly with temperature, and it is also very sensitive to hypoxia. The dielectric constant and semiconductor properties of rutile TiO 2 are very important to the electronic industry, which can be used to produce electronic components such as ceramic capacitors.
 
According to Mos hardness scale of 10 points, rutile TiO2 is 6 ~ 6.5, anatase TiO2 is 5.5 ~ 6.0, so in chemical fiber extinction in order to avoid wear spinneret hole and use anatase. Although titanium dioxide has hydrophilic, its hygroscopicity is not too strong, rutile type is smaller than the anatase type. The hygroscopicity of titanium dioxide has a certain relationship with the size of its surface area, large surface area, high hygroscopicity, but also related to the surface treatment and properties. Feel free to send an inquiry to get the latest price if you would like to buy Titanium Oxide TiO2 powder in bulk.

Performance of Titanium Oxide TiO2 powder:

Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO2
Titanium dioxide is a white inorganic compound, which has been used for around 100 years in a vast number of diverse products.
Titanium dioxide is non-toxic, non-reactive and luminous properties, which safely heighten the whiteness and brightness of many materials.
It is the whitest and brightest of known pigments, with reflective qualities; it can also both scatter and absorb UV rays.

Technical Parameter of Titanium Oxide TiO2 powder:

 

Titanium Oxide Nanopowder (TiO2) COA — %

TiO2

Al

Ca

Co

Cr

Fe

K+Na

Mo

Mg

P

S

Si

W

≥99.9

≤0.003

≤0.005

≤0.01

≤0.005

≤0.005

≤0.005

≤0.005

≤0.01

≤0.01

≤0.005

≤0.003

≤0.01


How is Titanium Oxide TiO2 powder produced?
Titanium dioxide was manufactured in two different ways: Sulphate Process and Chloride Process.
1.Sulphate Process

Titanium sulfate is produced by acidolysis of iron titanium powder and concentrated sulfuric acid. The concentrated sulfuric acid is decomposed into metantitanic acid, which is then calcined and crushed to obtain titanium dioxide products. This method can produce anatase type and rutile type titanium dioxide. The sulfuric acid method has the advantages of low price and easy to get ilmenite and sulfuric acid as raw materials, more mature technology, simple equipment, easy to solve anti-corrosion materials. Its disadvantage is that the process is long, can only be based on intermittent operation, wet method operation, high consumption of sulfuric acid, water, waste and by-products, large pollution to the environment.
2.Chloride Process
The chlorination method is to use titanium-containing raw materials, high titanium chloride slag, or artificial rutile, or natural rutile and chlorine gas reaction to produce titanium tetrachloride, distillation, and then gas-phase oxidation; After rapid cooling, TiO2 was obtained by gas-solid separation. The TiO2 adsorption due to a certain amount of chlorine needs to be heated or steam treatment to remove it. The process is simple, but at 1000℃ or higher conditions of chlorination, there are many chemical engineering problems such as chlorine, chlorine oxide, titanium tetrachloride high corrosion need to be solved, coupled with the special raw materials used, compared with the sulfuric acid method cost. Chlorination process production is continuous production, the production equipment operation flexibility is not large, but its continuous process production, the process is simple, fewer process control points, product quality is easy to achieve the optimal control. The advantages of the chlorination method are short process, easy expansion of production capacity, a high degree of continuous automation, relatively low energy consumption, and high-quality products can be obtained. Its disadvantages are a large investment, complex equipment structure, high material requirements, high-temperature resistance, corrosion resistance, device maintenance is difficult, research and development is difficult.

Application of Titanium Oxide TiO2 powder:
The most important applications of titanium dioxide are paints, varnishes and paper and plastics, which account for about 80 percent of world consumption of titanium dioxide. Other pigment applications, such as printing inks, fibers, rubber, cosmetics and food, account for another 8%. The rest is used for other applications, such as industrial pure titanium, glass and glass-ceramics, electroceramics, metallic copper, catalysts, electrical conductors and chemical intermediates.
1. Titanium dioxide is the most widely used white pigment because of its brightness and high refractive index.
2. Titanium dioxide is also an effective sunscreen in powder form, where it is used as a pigment to provide whiteness and opacity to products such as paints, coatings, plastics, paper, inks, food products, pharmaceuticals (such as tablets and tablets) and most toothpaste. In painting, it is often abbreviated as “vivid white”, “perfectly white”, “whitest white” or other similar terms.
3. Titanium dioxide in the rubber industry as a colorant, but also with reinforcing, anti-aging, filling the role.
4. In white and color rubber products to add titanium dioxide, under sunlight, sun resistance, no cracking, no discoloration, stretching rate and acid and alkali resistance.
5. Titanium dioxide for rubber, mainly used for automobile tires, rubber shoes, rubber floor, gloves, sports equipment, etc., generally anatase type.
6. For automobile tire production, often add a certain amount of rutile titanium dioxide products, to enhance the ability to resist ozone and ultraviolet.
7. Titanium dioxide is also widely used in cosmetics. Because titanium dioxide is non-toxic, far superior to lead white, almost all kinds of powdered titanium dioxide replace lead and zinc white.
8. Only 5%-8% of titanium dioxide powder can be added to the permanent white so that the spice is more slippery, adhesion, absorption and hiding power.
9. Titanium dioxide in gouache and cold cream can reduce the greasy and transparent feeling.
10. Titanium dioxide can also be used in a variety of other spices, sunscreen, soap, white soap and toothpaste.
11. When deposited as a thin film, the refractive index and color of titanium dioxide make it an excellent reflective optical coating for dielectric mirrors.
12. Some grades of modified titanium-based pigments used in sparkling paints, plastics, topcoats and cosmetics – these are artificial pigments whose particles have two or more layers of various oxides (usually titanium dioxide, iron oxide or alumina) to produce a shimmer, iridoid and/or pearlescent effect.
13. Titanium dioxide is used as a pigment, sunscreen and thickener in cosmetics and skincare products in sunscreen and UV protection pigments.
14. As a sunscreen, ultrafine TiO 2 is used, which is notable for its combination with ultrafine zinc oxide and is considered to be an effective sunscreen that reduces the incidence of sunburn and minimizes premature photoaging, photocarcinogenesis and immunosuppressive sun exposure associated with long-term excess. Sometimes these UV-blockers are used in combination with iron oxide pigments in sunscreens to increase protection against visible light.

Storage Condition of Titanium Oxide TiO2 powder:
Titanium Oxide TiO2 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 Titanium Oxide TiO2 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.
Titanium Oxide TiO2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Titanium Oxide TiO2 powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.Titanium Oxide TiO2 powder CAS 13464-67-7插图

 

Titanium Oxide TiO2 powder Properties

Other NamesDioxotitanium, Titanium dioxide, Titania, Titanium(IV) dioxide, Titanic oxide, Titanium peroxide, Titanium oxide powder
CAS No.13464-67-7
Compound FormulaTiO2
Molecular Weight79.9378 g/mol
AppearanceWhite crystalline powder
Melting Point1,843° C (3,349° F)
Solubility in waterN/A
Density4.23 g/cm3
Purity99.50%
Particle Size 5nm-50nm
Boling point2,972° C (5,382° F)
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young’s ModulusN/A
Exact Mass79.9378 g/mol
Monoisotopic Mass79.937776 Da
  
  

Titanium Oxide TiO2 powder Health & Safety Information

Safety WarningN/A
Hazard StatementsN/A
Flashing pointN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberXR2275000
Transport InformationNONH for all modes of transport
WGK Germanynwg
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About Titanium Oxide TiO2 powder:Titanium Oxide TiO2 powder, also known as Titanium dioxide, is an important inorganic chemical pigment, mainly composed of Titanium dioxide. The […]

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Manganese Dioxide MnO2 CAS 1313-13-9

About Manganese Dioxide MnO2:
Manganese dioxide is an inorganic compound with the chemical formula MnO2, which exists in the form of pyrolusite in nature. Physical properties: black amorphous powder, or black orthorhombic crystals. Solubility: hardly soluble in water, weak acid, weak base, nitric acid, cold sulfuric acid, pulverize concentrated hydrochloric acid under heating to produce chlorine.


If you want to know manganese dioxide price/MnO2 price/manganese oxide price, please send inquiry to sales1@rboschco.com

 
MnO2 is an alpha polymorph that can incorporate various atoms (and water molecules) in the “tunnels” or “channels” between the manganese oxide octahedrons. People are very interested in α-MnO2 as a possible cathode for lithium-ion batteries.
 
Manganese dioxide is an amphoteric oxide. It is a very stable black powdery solid at room temperature and can be used as a depolarizer for dry batteries. It is often used in the laboratory to produce chlorine by its oxidizing property and the action of concentrated HCl. Manganese dioxide is a strong oxidant in acidic media. Manganese dioxide is an [MnO₂] octahedron. The oxygen atom is on the top of the octahedron, and the manganese atom is in the octahedron. [MnO₂] octahedrons are connected together to form a single or double chain. These chains and other chains co-top to form The tunnel structure of voids, octahedrons or hexagonal close-packed, or square close-packed.

Manganese 2 oxide is an amphoteric oxide, and there is a corresponding salt in the form of a perovskite structure such as BaMnO3 or SrMnO3 (obtained by a compound reaction in a molten alkali system), and manganese tetrachloride is also present.
 
When electrolytic manganese dioxide encounters a reducing agent, it is oxidizing. For example, manganese dioxide is heated in a stream of hydrogen to 1400K to obtain manganese oxide; manganese dioxide is heated in a stream of ammonia to obtain brown-black manganese trioxide; the manganese dioxide is reacted with concentrated hydrochloric acid to obtain l chlorine Manganese, chlorine and water.

When manganese dioxide encounters strong oxidants, it also exhibits reducibility. If manganese dioxide, potassium carbonate and potassium nitrate or potassium chlorate are mixed and melted, a dark green melt can be obtained, and the melt can be dissolved in water and cooled to obtain potassium manganate, a compound of hexavalent manganese.

Manganese dioxide is a strong oxidant in acidic media. It is used as a catalyst in the decomposition of potassium chlorate [KClO3] and the decomposition of hydrogen peroxide (hydrogen peroxide, H2O2).

Due to the strong oxidant, manganese dioxide does not burn by itself, but it supports combustion and should not be placed with flammable materials. Feel free to send an inquiry to get the latest price if you would like to buy Manganese Dioxide MnO2 in bulk.

Product Performance of Manganese Dioxide MnO2 CAS 1313-13-9:
Physical properties: black amorphous powder, or black rhombic crystals. Solubility: Difficult to dissolve in water, weak acid, weak base, nitric acid, cold sulfuric acid, and dissolve in concentrated hydrochloric acid under heating to produce chlorine gas.

Chemical properties: Manganese dioxide is an amphoteric oxide. There is a corresponding salt in the form of a perovskite structure such as BaMnO3 or SrMnO3 (obtained by a compound reaction in a molten alkali system). There is also manganese tetrachloride.

When meeting the reducing agent, it shows an oxidizing property. If manganese dioxide is placed in a stream of hydrogen and heated to 1400K to obtain manganese oxide; manganese dioxide is heated in a stream of ammonia to obtain brown-black manganese trioxide; reacting manganese dioxide with concentrated hydrochloric acid produces l chloride Manganese chloride, chlorine and water.

When it meets strong oxidants, it also shows reducing property. It is a strong oxidant in an acid medium.

Manganese Dioxide Composition:

MnO2H2OFeCuPbNiCoHgAcid insolublesulfate
92.33%2.17%65ppm0.5ppm0.5ppm2.0ppm2.0ppm47ppm0.01%1.2%


How is Manganese Dioxide MnO2 produced?
Naturally occurring manganese dioxide contains impurities and a large amount of manganese trioxide. Only a limited number of deposits contain gamma modifiers of sufficient purity to meet the needs of the battery industry.

The production of batteries and ferrites (the two main uses of manganese dioxide) requires high-purity manganese dioxide. The battery needs “electrolytic manganese dioxide”, and the ferrite needs “chemical manganese dioxide”.
1. Chemical Manganese Dioxide
One method is to start with natural manganese dioxide and then use dinitrogen tetroxide and water to convert it into a solution of manganese (II) nitrate. The evaporation of water leaves crystallized nitrates. At a temperature of 400°C, the salt decomposes, releasing N2O4 and leaving a pure manganese dioxide residue. These two steps can be summarized as:
MnO2 +N2O4⇌MnNO32

2. Carbothermal reduction of manganese dioxide
In another method, manganese dioxide is carbothermal reduced to manganese (II) oxide dissolved in sulfuric acid. The filtered solution was treated with ammonium carbonate to precipitate MnCO.
The carbonate is calcined in air to obtain a mixture of manganese (II) and manganese (IV) oxides. To complete the process, the suspension of the material in sulfuric acid is treated with sodium chlorate. The chloric acid formed in situ can convert any Mn(III) and Mn(II) oxides into carbon dioxide, releasing chlorine by-products.

3. Manganese epoxide and manganese monoxide
The third method involves manganese epoxide and manganese monoxide. The two reagents are mixed in a ratio of 1:3 to form manganese dioxide:
Mn2O7 + 3 MnO→5 MnO2
Finally, the effect of potassium permanganate on manganese sulfate crystals produces the desired oxide.
2 KMnO4 + 3 MnSO4 + 2 H2O→5 MnO2 + K2SO4 + 2 H2SO4

4. Electrolytic Manganese Dioxide
Electrolytic manganese dioxide (EMD) is used in zinc-carbon batteries together with zinc chloride and ammonium chloride. EMD has also commonly used in manganese zinc dioxide rechargeable alkaline (Zn RAM) batteries. For these applications, purity is critical. The production method of EMD is similar to the production method of electrolytic ductile pitch (ETP) copper: manganese dioxide is dissolved in sulfuric acid (sometimes mixed with manganese sulfate) and electricity is applied between the two electrodes. The dissolved MnO2 enters the solution in the form of sulfate and is deposited on the anode.

Applications of Manganese Dioxide MnO2:
Manganese dioxide is a black or brown solid, naturally present in the mineral pyrolusite, which is the main ore of manganese and manganese nodules.

The main use of MnO2 is for dry batteries, such as alkaline batteries and zinc-carbon batteries.

MnO2 is also used as a precursor for pigments and other manganese compounds (such as KMnO4). It is used as a reagent in organic synthesis, for example for the oxidation of allyl alcohol.

MnO2 is used as a depolarizer for dry batteries, as a catalyst and oxidant in the synthesis industry, and as a colorant, decolorant and iron removal agent in the glass industry and enamel industry.

MnO2 is used to manufacture metallic manganese, special alloys, ferromanganese castings, gas masks and ferrites for electronic materials.

MnO2 can be used in the rubber industry to increase the viscosity of rubber.

MnO2 is used as a catalyst in chemical experiments

Used as a catalyst for the decomposition of hydrogen peroxide (hydrogen peroxide) to produce oxygen.

Used as a catalyst when heating potassium chlorate to decompose and produce oxygen.

It reacts with elemental aluminum powder to produce manganese by a thermite reaction.

Use pigments, yellow glass, etc.

React with hot concentrated hydrochloric acid to produce chlorine.

It reacts with molten caustic potassium (potassium hydroxide) in the air to produce potassium manganate.

In the decomposition reaction of potassium permanganate, manganese dioxide acts as a self-catalyst for potassium permanganate.

Storage Condition of Manganese Dioxide MnO2 Powder:
Precautions for storage: Store in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from combustibles (combustibles), reducing agents and acids, and avoid mixed storage. The storage area should be equipped with suitable materials to contain the leakage.

Packing & Shipping of Manganese Dioxide MnO2 Powder:
We have many different kinds of packing which depends on the Manganese Dioxide MnO2 Powder quantity.
Manganese Dioxide MnO2 Powder packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Manganese Dioxide MnO2 Powder: could be shipped out by sea , by air, by express as soon as possible once payment receipt.
Manganese Dioxide MnO2 CAS 1313-13-9插图

Manganese Dioxide Properties

Other Namesmanganese oxide, MnO2 powder
CAS No.1313-13-9
Compound FormulaMnO2
Molecular Weight86.94
AppearanceBlack Powder
Melting Point535 °C
Boiling PointN/A
Density5.03 g/cm3
Solubility in H2OInsoluble
Exact Mass86.9279
  
  

Manganese Dioxide Health & Safety Information

Signal WordWarning
Hazard StatementsH302 + H332
Hazard CodesXn, O
Risk CodesN/A
Safety StatementsN/A
Transport InformationNONH
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About Manganese Dioxide MnO2:Manganese dioxide is an inorganic compound with the chemical formula MnO2, which exists in the form of pyrolusite in nature. Physical properties: […]

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