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This section provides an overview for tungsten oxide as well as their applications and principles. Also, please take a look at the list of 14 tungsten oxide manufacturers and their company rankings. Here are the top-ranked tungsten oxide companies as of December, 2024: 1.American Elements, 2.Stanford Advanced Materials, 3.Ereztech LLC.
Table of Contents
Tungsten oxide is an inorganic compound composed of tungsten and oxygen.
There are various compounds, depending on the oxidation number of tungsten. One of the most common types of tungsten oxide is tungsten oxide (VI). Other known compounds include tungsten oxide (IV) and tungsten oxide (III).
Tungsten oxide is used industrially as a raw material for catalysts (such as visible light responsive photocatalysts) and tungsten metal, as well as an additive for ceramics, glass, and other sintered metals. It is also used as an additive for secondary batteries and as an electronic material. They can also be used as analytical additives for elements such as carbon, hydrogen, and nitrogen.
It is also used as a scintillator (a generic term for materials that emit fluorescence when exposed to radiation) for radiographic and nondestructive testing.
Tungsten oxide (VI) has a melting point of 2,683°F (1,473℃) and a boiling point of approximately 3,182° F (1,750℃). It is slightly soluble in water, soluble in alkali and ammonia water, and forms tungstates. Tungsten oxide (VI) is the final oxide of tungsten and is stable in air and an aqueous solution. However, any lower oxides can be produced by reducing agents.
It is stable in air at room temperature; it decomposes at 2,732-2,912°F (1,500 - 1,600°C) and is oxidized to tungsten oxide (VI). When scorched in a hydrogen stream, it is reduced to tungsten metal. Tungsten oxide (IV) has great electrical conductivity and is soluble in acid and potassium hydroxide solution, but insoluble in water.
Tungsten oxide (VI) is also called tungsten trioxide. Its chemical formula is WO3, and it is a yellow powder with a molar mass of 231.84 g/mol and a density of 7.16 g/cm3. The crystal structure of tungsten oxide (VI) varies with temperature. It is triclinic from -58°F (-50° C) to 62.6° F (17°C), monoclinic from 17 to 626°F (330°C), orthorhombic from 626-1,364°F (330 to 740°C), and tetragonal above 1,364°F (740°C).
Tungsten oxide (IV), also called tungsten dioxide, has the chemical formula WO2 and a molar mass of 215.84 g/mol. It is a bronze solid and its crystals are monoclinic, forming a distorted rutile-type structure of WO6 in octahedral coordination with short W-W bonds of 248 pm, each W center taking a d2 electron configuration.
The chemical formula for tungsten oxide (III) is W2O3 with a molar mass of 415.68 g/mol.
Tungsten oxide (VI) is formed by heating tungsten metal, other tungsten oxide, and tungsten sulfides in air or oxygen. In addition, the reaction of CaWO4 or ash feldspar with hydrochloric acid produces tungsten acid, which decomposes into tungsten oxide (VI) when reacted with water at high temperatures. Furthermore, tungsten (VI) oxide can be synthesized by calcination of ammonium paratungstate under oxidizing conditions.
Tungsten oxide (IV) can be obtained by heating tungsten oxide (VI). Specifically, tungsten oxide (VI) is reduced by tungsten powder at 1,652° F (900°C) for 40 hours. The reaction proceeds with partial reduction via W18O49 in a mixed valence state as an intermediate in the reaction.
In addition to WO3, WO2, and W2O3, other compounds of tungsten oxide have been reported, including W4O3, W3O, WO, W2O5, W3O8, W4O8, W5O9, and W5O14.
The color of tungsten oxide changes from gray, to brown, purple, blue, and yellow as the oxidation number increases. For example, blue-purple W2O5 is said to be the main component of tungsten blue.
*Including some distributors, etc.
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American Elements was founded in 1997 in California and currently has research and production facilities in Utah, Mexico, China, and the United Kingdom. AE manufactures and distributes advanced materials from a catalog of over 30,000 products for bulk industrial use as well as small scale laboratory use. AE also provides testing and analyses services including spectroscopy along with structural, thermal, and electrical analyses. AE holds sustainable development as a core corporate value and is committed to work to protect the health of the environment.
Stanford Advanced Materials was established in 1994 in Lake Forest, California to provide rare-earth products for research and development purposes. Stanford Advanced Materials serves many industries ranging from automotive to fashion to energy to research to sports to textiles. Stanford Advanced Materials manufactures and distributes purified metals, ceramics, composite materials including strips, plates, rods, wires, and bars, as well as laboratory equipment and optical equipment including crystals, lenses, splitters, and windows.
Edgetech Industries LLC (ETI) is a supplier of deposition and functional materials, rare earth elements, non-ferrous metals, and semi-metal elements that was established in 2015. Based in Weston, Florida, the company offers pure metals, alloys, compounds, ceramics and permanent magnets with applications in electronics, diagnostic imaging, power transmission, and sensors. ETI products supply clients in the medical, marine, aerospace, and industrial manufacturing sectors. The company also provides additional consultation, product design, laboratory testing for new materials, and technical support services.
Since its establishment in 1987, Buffalo Tungsten Inc. is a manufacturer of tungsten and tungsten carbide products, based in the United States. The company offers a wide range of products including tungsten powders, rods, and custom-engineered components, serving industries such as aerospace, defense, and electronics. Buffalo Tungsten demonstrates unwavering devotion to excellence, providing unfailing tungsten solutions. Their expertise lies in producing precision-engineered components that meet the unique needs of their clients, ensuring durability and performance in challenging environments.
Ereztech was founded in 2010 and headquartered in Johns Creek, Georgia with manufacturing in Sheboygan Falls, Wisconsin. Ereztech is a provider of organometallic precursor R&D and manufacturing services for global customers. Ereztech in ISO 9001:2015 certified. Ereztech offers over 1200 chemical compounds and materials including high purity silver sulfate and aluminum nitrate. In addition to these materials, Ereztech offers full-service production and packaging from synthesis samples to high-volume manufacturing quantities. This includes fully customized vessel cleaning procedures, detailed, custom workflow processes specific to each material and vessel, inventory management system, and beginning to end quality control.
A.L.M.T. Corp., founded in Japan in 1939, is a manufacturer of heat spreaders, tungsten/molybdenum powder and machined products. The company's product portfolio includes diamond cutting tools, CBN cutting, grinding tools, metallic materials that are used for electrodes in various electronics and heat-resistant parts for high temperature furnaces and drawing dies. The company serves industries such as oil and gas, aerospace and defense, automotive and transportation, construction, and power generation. The company also provides services including national distribution, product selection, installation, preventative maintenance, troubleshooting, repair and customer service.
Sajan Overseas Private Limited was incepted in 1978 and headquartered in Gujarat, India. The company is a manufacturer, exporter, and supplier of ammonium molybdate, molybdic acid, and scores of other compounds in various grades and specifications to customers around the world. The ISO 9001:2015-certified company provides research and development and advanced manufacturing of compounds with its most popular products being sodium stagnate, sodium tungstate, cadmium tungstate, tungsten trioxide, and sodium molybdate.
MUBY CHEMICALS, established in 1976, is a manufacturer and supplier of chemicals and excipients used in pharmaceuticals, cosmetics & personal care, agrochemical, and textile industries. Based in Ankleshwar, Gujarat, India, the company offers Shale gas hydraulic Fracturing Chemicals such as ammonium persulfate, diverting agents, inhibitors, ATMP phosphonate, and encapsulated gel breakers. Some food analytical reagent chemicals include benzyl alcohol, calcium oxide, boric acid, carbamide peroxide, and lithium carbonate. The company is GLP-approved, Kosher Certified, "REACH" Registered, and ISO-9001 Certified.
Atlantic Equipment Engineers was founded in 1963 and headquartered in Upper Saddle River, New Jersey, primarily serving the space program. Today, AEE also serves pharmaceutical, automotive, manufacturing, , solar, and water treatment industries. AEE products include 3D printing & additive manufacturing, high purity metal powders & compounds, rare earth metals & oxides, and custom allows. In addition to these, AEE offers blanket delivery service, analytical services, custom alloys, and sputtering system supplies.
Nacalai Tesque Inc., founded in 1846 and headquartered in Kyoto, Japan, is a manufacturer of research chemicals, fine chemicals, diagnostics, and the related instruments. Some of its products include cytokines, nucleic acid electrophoresis, cell dissociation reagents, and sialic acid-related products, and it also offers custom and bulk service for bulk reagents and cell culture media. The company has more than 50 domestic distributors and several worldwide, including Asia, the Middle East, Oceania, Europe, and Africa. It is ISO 9001 and ISO 9002 certified, while the Kyoto South brand and Tesque factory are ISO 14001 certified.
Advanced Engineering Materials Limited in headquartered in Changsha, Hunan, China. The company is a global researcher, manufacturer, and distributor of materials including non-ferrous materials, customized alloys, and other synthetic compounds. The company’s products are often used in optics solar, architecture, and automotive industries. The company’s products include crucibles, evaporation materials, crystal materials, powder products, and sputtering targets. Sputtering targets are mechanisms used to coat substrates with thin films. Sputtering target materials include fluoride targets, pure metal targets, alloy sputtering targets, and nitride sputtering targets.
Xi’an Functional Material Group Co., LTD (FM) was founded in 2002 and headquartered in Xi’an, China. FM specializes in high purity film coating materials and inorganic compound powder materials. FM’s product lineup includes two segments, film coating materials and inorganic compound powder. Film coating materials emphasizes metal sputtering targets, metal alloy sputtering targets, ceramic sputtering targets, evaporation materials, as well as other materials. Inorganic compound powder unit includes high purity metal materials, rare earth materials, chalcogenide materials, halides, nitrides, bodies, silicate materials, and other advanced materials.
Guangzhou Hongwu Material Technology Co., Ltd was established in 2002, and its headquarters is in Huangpu District, Guangzhou, China, as a producer of nanotechnology materials such as nanowires, nano germanium, carbon nanotubes, nano silicon, and nanosilver. The utilization of advanced nanomaterials, characterized by its outstanding performance, has been prevalent across several industries, such as solar energy, plastics information technology, ceramics, electronics, automotive, biomedicine, petrochemical, paint, metallurgy, and catalysis. Hongwu's primary objective is to revolutionize the limitations inherent in conventional materials.
Founded in Mumbai, India in 2006, Otto Chemie Pvt. Ltd. is an ISO 9001:2015 & GMP certified chemical manufacturing company and distributor. Otto Chemie serves customers in many industries including agriculture and food processing, pharmaceuticals, oil & gas, cement, as well as educational and R&D industries. Product offerings include antibiotics, amino acids, vitamins, detergents, ionic liquids, materials science compounds, labware, oil, metal & ceramic science compounds and tools, oils, reagents, solvents.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | American Elements |
20.3%
|
| 2 | Stanford Advanced Materials |
13.6%
|
| 3 | Ereztech LLC |
10.2%
|
| 4 | A.L.M.T. Corp. |
10.2%
|
| 5 | Edgetech Industries LLC |
8.5%
|
| 6 | Advanced Engineering Materials Limited |
8.5%
|
| 7 | BUFFALO TUNGSTEN INC. |
6.8%
|
| 8 | Sajan Overseas |
5.1%
|
| 9 | MUBY CHEMICALS |
5.1%
|
| 10 | Otto Chemie Pvt. Ltd |
5.1%
|
Derivation Method
The ranking is calculated based on the click share within the tungsten oxide page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
5 | 41.7% |
|
India
|
3 | 25.0% |
|
Japan
|
2 | 16.7% |
|
China
|
2 | 16.7% |
2 products found
2 products
A.L.M.T. Corp.
30+ people viewing
Last viewed: 1 day ago
■Product overview We chemically refine tungsten raw materials to produce high-purity tungsten trioxide powder. It is used in secondary batteries, s...
A.L.M.T. Corp.
20+ people viewing
Last viewed: 12 hours ago
■Product overview We chemically refine tungsten raw materials to produce high-purity tungsten trioxide powder. It is used in secondary batteries, s...
