An optical coating is the application of one (or several) metallic (or dielectric), films to an optical part’s surface. A coating applied to the optical part’s surface is used to increase or…
An optical coating is the application of one (or several) metallic (or dielectric), films to an optical part’s surface. A coating applied to the optical part’s surface is used to increase or decrease the intensity of the reflection, beam, color, and polarization. The two most commonly used methods for coating optical parts are vacuum coating, and electronicless coating.
Principle of optocoating:
Vacuum coating:
Vacuum coating refers to coatings that must be done in higher vacuums, such as vacuum ion, magnetron, magnetron, molecular beam epitaxy and PLD laser-sputtering. A substrate is formed from the plated materials and electroplated material. The target and substrate are in the same vacuum.
The evaporation coating is usually the target of heating so that the surface components evaporate in the form of free radicals or ions and are deposited on the surface of the substrate by film-forming method (scattering island structure-trapezoidal structure-layered growth).
Acrylic coating
You can easily understand the process of forming a sputtered coat by the fact that electrons or high energy lasers bombard the target material and surface components are released as free radicals.
An optical film has a smooth top, a geometrically-segmented interface between layers, and a refractive Index that can jump at interfaces. But it’s continuous within the film.
The absorption medium can be either uniformly normal or not. Practical application of the film can be more difficult than an ideal one. Because of its optical and physical characteristics, it is different from bulk material. Its surface and interface are also rough which causes diffuse scattering. Due to mutual penetration, the films form a diffusion interface. The anisotropy is formed by the film’s growth, structure, and stress.
Common optical coating materials include the following:
1. Metal (alloy): germanium, chromium, aluminum, silver, gold, etc.
Germanium.
This rare metal is safe and non-radioactive. It has a light transmission range of 2000NM to 14000NM.
Chrome.
Sometimes found in spectroscopes, and often used as a “colloid” layer to enhance adhesion. It may range from 550 to 30NM. But, under the guidance of aluminum mirror, 30NM can be an effective value for adhesion.
Aluminium.
It is the most reflective metal in the ultraviolet area. Effective thickness is over 50NM.
Silver.
When the evaporation rate and substrate temperature are fast enough, silver will have the same high reflectivity of aluminum. This is because there is more absorption due to the massive accumulation that occurs at very low speed.
Gold.
Material with highest reflectivity of all known materials is above infrared 100nm wavelength
2. Oxides.
Yttrium trioxide.
By electron gun evaporation the property of the material changes with film thickness. The refractive index, which is approximately 1., can be used. 8 % at 500 nm. It’s very well-known as an aluminum protective coating, in particular due to its high incident angle at 800-12000nm.
Cerium dioxide.
High-density tungsten boat evaporates cerium dioxide on a substrate of 200°C to get a refractive Index of about 2.2. The absorption band is located at about 3000nm, and its refractive indice changes with temperature. Oxygen ion plating can produce nylon 2.35 (500nm), which is a low absorption thin film.
titania.
The refractive Index is defined as the light transmission range between 2.21500 and 3.15400nm. People love this material because of its high refractive and relative firmness. It is used for anti-reflection films, splitter films, cold light films, filter, high reflective film, glasses film and thermal mirror.
Silicon dioxide.
It is a transparent colorless crystal with a high melting point, hardness and chemical stability. Use it for high-quality Si02 coatings. It has a very pure crystal with no melting point. You can divide it into infrared, visible and ultraviolet depending on your use. A film that has too much pressure can cause pores to form and be fragile. Conversely, a film that has too little pressure will be absorbable and its refractive Index will rise.
Zirconium dioxide.
High refractive index, high resistance to temperature and chemical stability make the white heavy crystal very pure. You can use it for high quality zirconia coatings. Because of its roughness, the incident light will be diffused and the transmittance of your lens is reduced. Additionally, optical rotation will cause certain incident light sources to dissipate particularly strongly. One example is that a material which absorbs red light appears green. But, poor processing can still be avoided.
Hafnium oxide.
If the substrate is heated to 150C by an electron gun, its refractiveindex is approximately 2.0C. Oxygen ion assisted plating can achieve a stable refractiveindex of 2.5-2.1. In the region of 8000-12000NM, HFO2 works better than SiO2 for the protective outer layer.
3. Fluoride.
Magnesium fluoride.
This antireflective coating has a 1×4 wave thickness and is used widely as an optical glass. It transmits about 120NM true ultraviolet radiation to the middle-infrared region at about 7000nm.
Calcium fluoride or barium fluoride.
The only problem with their compactness is that they are not completely solid. They can be used only in infrared films because transmittance shifts towards longer wavelengths at higher temperatures.
Lead fluoride.
This material can also be used in UV. If it’s used in 300nm it will have a lower refractive value when it comes into direct contact with molybdenum or tantalum. Therefore, platinum and ceramic dishes are required.
4. Additional compounds
Zinc sulfide.
Light transmission ranges with refractive indices of 2.35400-13000m have good durability and stress. Mainly used to make spectroscopic and cold light films, decorative film, filters, high reflective film and infrared films.
Lead Telluride.
It’s an IR material of high refractive. Because it’s a thin-film material, transparency is possible in between 300 and 4000 NM. The material is sublimated in the infrared. Substrat temperature is 250C. Prevention is essential. The maximum range of 40000NM is sufficient to make it work. Many other materials can be used to create a 14000NM edge.
Silicon dioxide Price
Price is affected by many things, such as the demand and supply in the market and industry trends. Economic activity. Unexpected events.
For the current SiO2 prices please send an inquiry. (brad@ihpa.net)
Silicon dioxide Supplier
Technology Co. Ltd. (), is a respected SiO2 provider , and SiO2 manufacturer . It has over twelve years’ experience. All of our products are available for shipment worldwide.
Feel free to email us for a high-quality siO2 powder. (brad@ihpa.net)
Alumina ceramics’ main properties Alumina ceramics, a ceramic material containing alumina (Al2O3) is used for thick film integrated Circuits. Alumina ceramics exhibit high conductivity, high mechanical strength, and high resistance to temperature….
Alumina ceramics’ main properties
Alumina ceramics, a ceramic material containing alumina (Al2O3) is used for thick film integrated Circuits. Alumina ceramics exhibit high conductivity, high mechanical strength, and high resistance to temperature. Ultrasonic cleaning may be required. Alumina ceramics can be used in many different ways. Alumina ceramics are becoming more popular in modern society because of their superior performance.
Alumina industrial ceramics offer excellent insulation, wear resistance and high temperature resistance. They are popularly used in many industries, including electronics, chemical, refractory, as well as machinery and electronics. What are some of the uses for alumina?
The main applications of alumina in industrial ceramics
1. The main components in ruby and sapphire’s are alumina industrial clays. These will display different colors due to other impurities. Ruby has chromium dioxide, and is red. Sapphire has iron oxide (and is also blue), and sapphire has titanium oxide (and is also blue).
2. The content of alumina industrial clays, which is the major component of bauxite of biauxite is the highest, is the highest.
3. Aluminum is resistant to corrosion in the atmosphere because it is made from industrial ceramics. Pure aluminum is very easy for oxygen to react with, creating a thin aluminum oxide film in order to protect the aluminum surface.
This ceramic film of alumina can be used to prevent further aluminum oxidization. Anodizing is a process that increases the thickness of oxide films.
4. Aluminum is a good conductor and heat conductor. Because of its high hardness and adaptability, carborundum is the crystal form. It is ideal for cutting tools and abrasive materials.
Tech Co., Ltd. is a professional supplier of Alumina powder. We have over 12 years of experience in chemical products development and research. We accept payments via Credit Card and Paypal. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
Send us an inquiry if you are interested in high-quality Al2O3 Powder.
The metal molybdenum, with the chemical formula H2MoO4, is used for many applications. It is important for the synthesis of proteins, for preventing the development of diseases in animals and humans, and it is needed for brain function. It is also used in the production of X-ray and heat tubes, vacuum tubes and components for electron tubes.
The element is an essential part of several enzymes (such as nitrogenase and xanthine oxidase) that turn nitrogen into compounds that support the synthesis of proteins in animals, plants and bacteria. It is also important for the processing of waste products by the body, the synthesis of energy in cells and the proper development of the nervous system.
Among the most common sources of molybdenum are cereals and bread, as well as meat. The mean dietary intakes for adults in European countries vary over a wide range, from 58 mg/day to 157 mg/day.
It is an essential cofactor of several human enzymes such as sulfite oxidase, xanthine oxidase, aldehyde oxidase and the mitochondrial amidoxime-reducing component. It is needed for the synthesis of proteins and is also important for the phosphorus metabolism, for the processing of waste products by the body and for the synthesis of energy in cells.
The chemical element is not toxic in small amounts, but excessive exposure can lead to a number of health problems. Some of the effects include weakness, fatigue, headache, anorexia, muscle pain and joint pain. It is especially toxic to infants.
Iron ii arsenide (Fe2As) is a highly crystalline solid with an oxidation number of 3.It is a member of the Zintl phase of the element group III and has been used as…
Iron ii arsenide (Fe2As) is a highly crystalline solid with an oxidation number of 3.
It is a member of the Zintl phase of the element group III and has been used as a semiconductor, as a pigment in ceramics, and in hair dyes. It is also a valuable reagent for treating exhaust gases and lessening heavy metal pollution.
The IUPAC formula for Fe2As is a mixture of trigonal prismatic sulfide ions with octahedral iron centers. It is commonly found in hematite, troilite, goethite, and pyrrhotite minerals.
A Guide to Naming Simple Ionic Compounds
Identify the cation name and then the anion name. If the cation can have more than one possible charge, use the Stock system, but if it can only have one, name the cation with a stem of -ic/-ous and the name of the anion without numerical prefixes.
In addition to naming the ionic compound, you must remember to name each pair of ions separately. This helps you to remember how many ions are involved in each formula and can also help you to figure out which chemical reaction has occurred when a given combination of ions is added together.
There are three basic types of ionic compounds. Type I is the monatomic ionic compounds, which contain only the elements themselves with no non-metal ions. Table 3.5.2 lists some common monatomic ions and gives the IUPAC formulas for each. In addition, Type II is the binary ionic compounds, which contain transition metals with non-metal ions.
Inquiry us
What is Cuprous Oxide Cu2O? Cuprous oxide is an univalent copper dioxide, bright red powder that is almost insoluble, and gradually oxidized in the air to black copper oxide. Cuprous oxide is…
What is Cuprous Oxide Cu2O? Cuprous oxide is an univalent copper dioxide, bright red powder that is almost insoluble, and gradually oxidized in the air to black copper oxide.
Cuprous oxide is a common pigment, fungicide, or antifouling ingredient in Marine coatings. The first rectifier diodes made from this material were in use in industry back in 1924. This was long before silicon became the standard. Benedict’s test also has a positive pink color due to copper oxide (I).
What is Cuprous Oxide and Cupric Oxide?
Copper is a bright red-orange metal that has high conductivity to heat, electricity and other forms of energy. Copper shares this ability with gold and silver because each element has a “free agent” electron, which is capable of negotiating chemical bonds with all atoms around it. The other electrons are all tightly bound to their groups, but this one can be transferred.
Copper reacts with water molecules, which can contain two hydrogens and one oxygen. This free electron is transferred to an oxygen atom nearby, which binds it to the molecule. It is known as copper oxide if only one copper atom is attached to an oxygen molecule. It is cuprous oxide if two copper atoms bond to one oxygen. Copper oxide is “fully oxidized”, but cuprous oxide stays active.
Cuprous oxide’s active form is what makes it a very effective fungicide. It still produces reactive oxygen, highly reactive molecules. These unstable molecules can cause damage to cells.
What does Cuprous Oxide serve?
Antifouling paint is for ships and ship bottoms. It’s an effective way to control corrosion.
Paint for glass and porcelain
It is used as a p-type semiconductor material in the production of photocells light meters and rectifiers.
Useful as a fungicide or seed dressing agent.
Cuprous oxide is often used as a catalyst to produce other chemicals. This is used for the manufacture of zinc chloride and ferrous chlorineide. It is also used to absorb UV light in surface treatment products.
Cuprous oxide accounts for 9 to 15% of all battery production. It’s also used in metal production and construction as well as in the manufacture of plastics and organic compounds. It’s an ingredient in several paints, and it is used as an oxygenant in many metal plating process.
Useful in industrial and construction as effective preservatives, catalysts, and reagents of ultra-high purity. It’s particularly useful in manufacturing and process control as well as construction. It is also used for water treatment, especially to purify water to remove dissolved parts and for the polymerization specific polymers.
This process is essential for steel production and serves as a catalyst in metallurgy. Catalysts reduce the iron’s oxide.
Useful as a flux in metal melting, as well as as as a flame retardant and pigment.
Price of Cuprous Oxide
Price is affected by many factors, including supply and demand, industry trends and economic activity.
Send us an inquiry if you need the latest copper oxide powder cost. (brad@ihpa.net)
Cuprous Oxide Supplier
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in producing super high-quality chemicals.
Send us an inquiry if you’re interested in high-quality Cu2O. (brad@ihpa.net)
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…
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 may form either a square-shaped dense product or a hexagonal dense one. The process of oxidizing manganese dioxide (or manganese oxide) is non-salt-forming and non-amphoteric. It reacts with reducing substances to become oxidizing. To make manganese oxide, heat manganese dioxide in a stream with hydrogen to 1400K. For brown-black manganese triooxide, heat manganese bioxide in a stream with ammonia. Concentrated hydrochloric acids are used to react the manganese to create chlorine, manganese and water.
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 can turn low-valent iron sodium salts into high iron salts. Use in the 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 a catalyst for organic synthesizing. It is also used in the match trade as a combustion aid, as well as as a raw ingredient 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 heated to make Cl2 by heating MnO2 to oxidize. The concentrations of Cl- and H+ gradually drop as the reaction progresses. 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 for manganese-zinc-ferrite soft magnet materials. It is capable of strong catalysis and oxidation/reduction, as well as ion exchange, adsorption, and catalysis. It can be used as a water purification filter material, with a wide range of performance after it has been processed and molded. It is more resistant to metal removal than water filter media.
Tech Co., Ltd. is a professional oxide powder supplier. It has over 12 years’ experience in chemical product development and research. We accept payments via Paypal, T/T or West Union. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
We can provide high-quality titanium diboride powder. Please contact us to send an inquiry.
Introduction to Nickel Titanium Alloy Pulp Nickel Titanium Alloy Oder nitinol A binary alloy of nickel, titanium and other elements that can be used to create shape memory alloys. Shape memory alloys…
Introduction to Nickel Titanium Alloy Pulp
Nickel Titanium Alloy
Oder
nitinol
A binary alloy of nickel, titanium and other elements that can be used to create shape memory alloys. Shape memory alloys are special alloys that can automatically restore their plastic deformation to the original shape when heated up. It has an expansion rate of more than 20%. The fatigue life is approximately 1*107. The damping properties are 10 times better than an ordinary spring. Its corrosion resistance surpasses that of the best medical stainless, making it an excellent functional material.
In addition to its unique shape memory function memory alloy also offers excellent characteristics like wear resistance, corrosion resistance, and superelasticity.
Nitinol alloy
There are two phases of the crystal structure that can be formed by temperature or mechanical pressure. These are the martensite and austenite phases. The phase transition sequence for Nitinol in cooling is the austenite phase, R phase and martensite phases. The R phase of Nitinol is rhomboid. This means that the austenite has a higher temperature than the parent (or the temperature at the start of austenite), or when it is removed from the load. The shape is fairly stable. Martensite phases are relatively low in temperature (less than Mf, the end of martensite temperatures) and can be loaded (by external activation). They are hexagonal, repetitive, stable, and easy to fracture.
Physicochemical properties of Nickel-Titanium Alloy powder
1)
Shape memory
. Shape memory is when the parent phase of a particular shape is cooled to below Mf temperature to make martensite. After the martensite has been deformed, it is heated to below Af and then cooled to below Mf temperatures to form martensite. Reverse phase transformation allows the material to automatically restore its parent phase shape. Actually, the shape memory effect can be described as a thermally inducible phase transition in Nitinol.
2)
Superelasticity.
The phenomenon known as superelasticity refers the fact that a specimen can have a strain much greater than its elastic limit when subject to external forces. The strain can be easily recovered automatically during unloading. In other words, when applied stress is applied to a parent state, stress-induced Martensitic Transformation occurs and the alloy exhibits a different mechanical behavior from ordinary materials. Its elastic limit, which is much greater than the one for ordinary materials, does not conform to Hooke’s laws. Superelasticity is not affected by thermal energy, unlike shape memory properties. Hyperelasticity, in other words, means that stress does not increase when there is a change in strain. Hyperelasticity can be classified into nonlinear and linear hyperelasticity. The relationship between stress strain and stress in the stress-strain curve is nearly linear. Nonlinear Hyperelasticity refers to stress-induced martensitic conversion and its reverse transformation during loading or unloading processes. It is also known as phase transition pseudo-elasticity. The pseudoelasticity of Nitinol alloy is approximately 8%. You can change the heat treatment conditions to alter the superelasticity in Nitinol alloy. The superelasticity of Nitinol alloy begins to decrease when the bow wire heats to 400C.
3)
Sensitivity of oral temperature
. The oral temperature does not affect the stainless steel wire and CoCr alloy tooth orthotic wire orthodontic force. The change in temperature affects the orthodontic force of superelastic Nitinol orthodonticwire. If the amount of deformation remains constant, it is called the constant. The orthodontic force increases as the temperature rises. It can accelerate tooth movement because the temperature changes in the mouth stimulate blood flow. Orthodontists can’t measure and control corrective forces in the mouth.
4)
Corrosion resistance
. Research shows that nickel-titanium steel wire has a corrosion resistance similar to stainless steel.
5)
Toxicity resistance
Nickel-titanium form memory alloy (about 50% nickel) is known to have both carcinogenic as well as cancer-promoting properties. The Ni-Ti alloy has good biocompatibility because the titanium oxide layer acts as a barrier. Ni can be blocked by TiXOy/TixNiOy in the surface layer.
6)
Soft orthodontic force
. Dental orthodontic wires that are commercially used include austenitic stainless wire, cobalt chrome-nickel wire and nickel-chromium alloy wire, Australian wire, gold wire, and the ss titan alloy wire. These wires are loaded-displacement curves in tensile and three-point bent test conditions. Nitinol has the lowest and most flattened unloading curve platform, indicating that Nitinol provides the most durable and gentle correction force.
7)
Good shock absorption
. The more vibration caused by chewing or night molars on an archwire, the more damage it causes to the root tissue and periodontal tissue. Study results showed that archwire stainless wire wire vibration amplitudes are higher than hyperelastic nitanium silk, super elastic nitanium arwire, and the initial vibration amplitude of stainless steelwire wire. Good vibration and shock absorption characteristics of archwire are essential for the health of teeth. Traditional archwires, such as stainless wire, can increase root absorption.
Nickel Titanium Alloy Powder Properties
|
Other names
|
nickel-titanium, shape-memory nitinol, NiTi, Ni-Ti
|
No.
|
52013-44-2
|
Formula compound
|
Ni-Ti
|
Molecular Weight
|
N/A
|
Appearance
|
black powder
|
Melting Point
|
1300degC
|
Boiling Point
|
N/A
|
Density
|
6.45g/cm3
|
Solubility of H2O
|
N/A
|
Exact Mass
|
N/A
|
Nitinol Nickel Titanium NiTi Alloy Pulp
Nickel-Titanium Alloy Pulver Applications
Ni-Ti is a widely used alloy in biological medicine, aerospace and national defense as well as military industry.
Principal supplier of nickel-titanium alloy powder
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in providing high-quality chemicals, nanomaterials, and metal alloys.
High-quality products are what you want
Nickel Titanium Alloys Powder
Please feel free and contact us to send an inquiry. (brad@ihpa.net)
What is it? Mn2O3 Pulver ? Manganese oxide trioxide, a compound with the chemical formula Mn2O3 has a molecularweight of 157.88. Black cubic crystals. Relative densities 4.50 Water, acetic acid, and ammonium…
What is it?
Mn2O3 Pulver
?
Manganese oxide trioxide, a compound with the chemical formula Mn2O3 has a molecularweight of 157.88. Black cubic crystals. Relative densities 4.50 Water, acetic acid, and ammonium chloride solution are insoluble. It is also insoluble in other inorganic acid. Cold hydrochloric acid is used to dissolve the substance to make a brown solution. Hot dilute sulfuric or concentrated sulfuric acids are used to create a red solution. The solution then undergoes decomposition into MnO2 & manganese Nitrate in hot acid. When heated, it becomes Mn3O4 which releases O2. It is available in two forms: a–Mn2O3 (or g–Mn2O3). The a-type can be made by decomposing nitrate carbonate or chloride in air and heating to 600800. The g type is made by heating MnO2 in vacuum at 50 for 78 hours. Or by g–MnO (OH). It is used in the printing, dyeing, and oxidation processes of carbon monoxide, as well as in the production of soft magnetic materials.
The properties of Mn2O3 powder
Manganese Trioxide is a black cubic crystalline, insoluble and insoluble in water, Acetic Acid, and Ammonium Chloride Solution. It is also soluble with other inorganic acid. When heated to 1080, it becomes Mn3O4 or O2. It can be dissolved in cold water chloric acid to a brown solution or in hot dilute sulfuric and concentrated sulfuric acids to a red solution. When heated, it will decompose into Mn3O4 (and O2) and manganese-nitrate in hot acid. It comes in two forms: a–Mn2O3 (g-Mn2O3) and g–Mn2O3.
Manganese Oxide Mn2O3 Powder Properties
|
Other Titles
|
Manganese oxide, Manganese(3+) oxide, Manganese sesquioxide,
Dimanganese trioxide, Keto-(ketomanganiooxy)manganese,
Manganese(3+) oxide, Manganese trioxide,
Oxo-(oxomanganiooxy) manganese
|
No.
|
1317-34-6
|
Combination Formula
|
Mn2O3
|
Molecular Weight
|
157.87
|
Appearance
|
Black Solid
|
Melting Point
|
940 degC (1724 degF)
|
Solubility of in water
|
N/A
|
Density
|
4.5 g/cm3
|
Purity
|
99.50%
|
Size
|
0.8mm
|
Boling Point
|
N/A
|
Specific heat
|
N/A
|
Thermal Conductivity
|
N/A
|
Thermal Expansion
|
N/A
|
Young’s Modulus
|
N/A
|
Exact
|
173.856
|
Monoisotopic
|
173.856
|
Manganese Oxide Mn2O3 CAS 1317-34-6
The preparation of Mn2O3 Pulver
1. A-Mn2O3a can be prepared by further oxidation/reduction of manganese oxides or heating divalent Manganese salts in air at 600-800degC. To heat manganese nuitrate hexahydrate, or pure b–MnO2, to a constant temperature at 650°C in air is the best way. Manganese nitrate-hexahydrate is used as the raw material. It must be heated to 190°C to create a solid substance. Pulverized material can then be heated to 650°C.
2. Preparation of G-Mn2O3 In 350mL the solution, in which 2.2g Manganese Sulfate Tetrahydrate was dissolved was stirred vigorously. Next, 34mL dropwise of 3% Hydrogen Peroxide Solution was added, followed by 50mLs of 0.2mol*dm-3 Ammonia Water to create g–MnO(OH). To make the suspension that emits oxygen darken or black, heat for 4 minutes. Then filter and separate the solid. For gMn2O3, the gMnO(OH) was meticulously dehydrated at 250°C for 3 days. You can also prepare g–MnO2 by heating it at 500°C for 78h, under reduced pressure.
Use of Mn2O3 Pulver
1. There are many uses of Mn2O3; it can be used for printing and dyeing fabrics.
2. It is capable of efficiently catalyzing the oxidation organic pollutants and nitrogen oxides as well as organic coupling reactions.
3. It can be used to make soft magnetic material precursors.
4. Used as a raw ingredient in the production of lithium ion battery electrode materials.
5. It is both the primary and intermediate product for manganese compound.
The principal supplier of Mn2O3 Pulver
Tech Co., Ltd. () is a professional
Oxide
powder
Over 12 years’ experience in chemical product development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
You can find high-quality powdered boron carbide here
Please contact us
Send an inquiry
Overview of Manganese Dioxide Pulver Manganese dioxide This inorganic compound has the chemical formula MnO2. It is found in nature as pyrolusite. Physical properties: Amorphous black powder, or black orthorhombic black crystals….
Overview of Manganese Dioxide Pulver
Manganese dioxide
This inorganic compound has the chemical formula MnO2. It is found in nature as 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 the “tunnels”, or “channels”, between the manganese dioxide octahedrons. A-MnO2 has been viewed as a possible catalyst for lithium ion battery batteries by many people.
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 concentrated hydrochloric 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 manganese. [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 underground 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 applications of Manganese Dioxide Pulver?
Useful as a dry battery depolarizer, catalyst and oxidant in synthesis, coloring agent, decolorizer and iron removal agent for the glass and enamel industries. It is used to make metal manganese, special alloys, ferromanganese casters, gas masks and electronic materials ferrites. It is also used in the rubber industry to increase rubber’s viscosity. It can also serve as a catalyst for chemical experiments.
Organic synthesis
Manganese dioxide can be very useful in organic and forensic chemistry. 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.
Use in the lab
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.
The main supplier of
Manganese Dioxide Powder
Tech Co., Ltd. () is a professional
oxide powder
Over 12 years’ experience in chemical products development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
You can find high-quality powdered boron carbide here
Please contact us
Send an inquiry
The use of lithium metal as an anode in the rechargeable Li-ion battery is a promising development. It offers a high theoretical specific capacity, long cycle life and excellent energy density. However,…
The use of lithium metal as an anode in the rechargeable Li-ion battery is a promising development. It offers a high theoretical specific capacity, long cycle life and excellent energy density. However, it is limited in its reactivity. Various solutions have been developed to mitigate the reactivity of lithium metal anodes including: pyrophoric coating with CO2, polymer solid electrolyte interphase (SEI), and alkali metal ions.
The reactivity of lithium metal anodes in the current Li-ion battery design is an important concern in the development of portable electronic devices. The reactivity of lithium anodes leads to unstable solid electrolyte interphases (SEIs), runaway reactions, and instabilities in the electrode film resulting in poor performance.
One approach to stabilize the reactivity of lithium metal is to coat the metal powder with a wax layer that provides a continuous protective barrier against the reactivity of lithium metal. A wax-coated lithium powder with a thin and dense LiF passivation layer has been described as a possible solution to this problem.
A wax-coated lithium powder may be coated by dispersing the lithium metal powder in a solvent, then contacting the dispersed lithium metal powder with a wax at a temperature above the melting point of the lithium. Suitable waxes include natural waxes such as 12-hydroxystearic acid, synthetic waxes such as low molecular weight polyethylene, petroleum waxes such as paraffin oil, microcrystalline waxes and the like.
Wax-coated lithium powder is stable in solvents such as N-methyl-2-pyrrolidone and gamma-butyrolactone commonly used as the electrolyte solvents in the rechargeable Li-ion battery industry. The wax-coated lithium powder also has an improved storage life in these solvents as compared to CO2-passivated lithium metal powder.