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This section provides an overview for tellurium as well as their applications and principles. Also, please take a look at the list of 7 tellurium manufacturers and their company rankings. Here are the top-ranked tellurium companies as of December, 2024: 1.Sidhartha Metal Company Unit Of Svpl, 2.Aurubis, 3.Central Drug House.
Table of Contents
Tellurium, with atomic number 52, belongs to group 16 of the periodic table.
This nonmetallic element, symbolized as Te, has an atomic weight of 127.60 and exhibits isotopes ranging from mass numbers 105 to 132. Among these, eight are stable while the remainder are radioactive.
Classified under various safety laws, tellurium, and its compounds pose toxicity risks to humans.
Tellurium serves as an alloy additive in steel and other acid-resistant alloys to enhance workability and sulfuric acid resistance. Its compounds find uses in colorants for glass and ceramics, oxidizers, and thermoelectric elements, notably in thermocouples for electronic refrigeration systems. High-purity intermetallic Se-Te compounds are utilized in photosensitive drums for dry copying, offering high recovery and reuse rates.
Moreover, adding 0.01-1.0% metallic tellurium to steel improves its free-cutting features, toughness, and corrosion resistance, making such steel ideal for automotive and precision machine parts.
While many tellurium compounds emit a garlic-like odor, elemental tellurium is odorless. It has a melting point of 449.51°C, a boiling point of 988°C, and a specific gravity of 6.232. Chemically akin to sulfur and selenium, it burns in air with a blue-green flame to form tellurium dioxide (TeO2) and reacts violently with halogens. Tellurium exhibits oxidation states of 6, 5, 4, 2, and -2 and forms a weakly acidic oxide.
Tellurium's metallic form is a silvery-white crystal with a hexagonal structure, and its electron configuration is [Kr] 4d10 5s2 5p4. It occurs naturally in various minerals, both as elemental tellurium and in compounds with gold, silver, copper, and lead.
Although tellurium's environmental presence is minimal, it is primarily obtained from sulfide ores as tellurides and in minor quantities in gold and silver. Leading reserves are found in the United States, Peru, and Canada, with major producers being Canada, Belgium, the United States, Peru, and Japan, accounting for 82.3% of global production.
In Japan, tellurium is sourced from the Kawazu Mine in Shizuoka and the Tezu Mine in Hokkaido. Industrially, it is derived from anode mud in copper and lead refining processes, treated with soda ash to produce soluble tellurium salts, and then isolated as telluric acid (TeO2・nH2O).
Of the 30 known tellurium isotopes, naturally occurring 128Te and 130Te are radioactive, undergoing double beta decay, with 128Te having the longest half-life of any radioactive isotope. A small fraction of 110Te decays to 106Sn via alpha decay. Artificially, 131I can be produced from neutron capture of 130Te.
Both elemental tellurium and its compounds are toxic, metabolizing in the body to produce dimethyl telluride, which emits a garlic-like odor. Exposure to tellurium compounds can lead to symptoms such as loss of appetite, headaches, nausea, and difficulty breathing, among others. These can be mitigated by avoiding further exposure.
*Including some distributors, etc.
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Sidhartha Metal Company Unit Of SVPL is a manufacturer specialized in metal products and components, headquartered in India, and established in 1987. The company holds a ISO 9001:2015 certification and serves industries such as automotive, construction, manufacturing, and infrastructure. Its portfolio includes a wide range of metal components, structural products, and customized metal solutions. Its products find diverse applications in these industries by enhancing structural integrity, supporting manufacturing processes, and contributing to infrastructure development.
The Company operates diverse businesses, ranging from nonferrous metals and other fundamental materials to cemented cardide tools/metalworking solutions, the manufacturing of semiconductor-related and electronic components/materials, resource recycling, and renewable energy power generation. In each business, the Company holds the No.1 position in production volume, sales volume, etc.
Aurubis, Founded in in 1866 with headquarters in Hamburg (DE), is a manufacturer and supplier of various metals, serving as a producer of copper and copper alloy strip/sheet. The company is a major player in the metallurgy industry. Aurubis plays a pivotal role in creating the foundation for future technologies. Their extensive annual output of about 1.1 million tons of copper cathodes, 2.3 million tons of sulfuric acid, and 1.7 million t of copper products in Europe and the US, used in a wide range of applications, including electrical products, electronic connectors, heat exchangers, and architectural products.
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.
Founded in 1981, Central Drug House Ltd. serves the scientific community via manufacturing and marketing a library of over 9,000 products to laboratory fine chemicals and dehydrated culture media with emphasis on purity and service. Examples are acids & bases, adsorbents, disinfectants, indicator papers, oils, and solvents. CDH provides bio chemicals, research chemicals, laboratory reagents, various solvents, stains & indicators, and dehydrated culture media. CDH is ISO 9001 certified and CDHs’ products are in compliance with specifications of IP, BP, USP, and EP standards.
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.
Shinko Chemical Co., Ltd. is a supplier specialized in rare metals and industrial materials, headquartered in Japan, and established in 1938. The company serves industries such as electronics, manufacturing, automotive, and aerospace. Its portfolio includes a range of rare minerals, specialty materials, and custom solutions tailored to various industrial applications such as Vanadium, Selenium and Tellurium. Its products find diverse applications in these industries by enhancing manufacturing processes, improving product performance, and contributing to technological advancements.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Sidhartha Metal Company Unit Of Svpl |
36.6%
|
| 2 | Aurubis |
17.2%
|
| 3 | Central Drug House |
12.9%
|
| 4 | Mitsubishi Materials Corporation |
11.8%
|
| 5 | nacalai |
11.8%
|
| 6 | Otto Chemie Pvt. Ltd |
6.5%
|
| 7 | Shinko Chemical Co., Ltd. |
3.2%
|
Derivation Method
The ranking is calculated based on the click share within the tellurium 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.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
India
|
3 | 60.0% |
|
Japan
|
2 | 40.0% |
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