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This section provides an overview for phosphotungstic acid as well as their applications and principles. Also, please take a look at the list of 8 phosphotungstic acid manufacturers and their company rankings. Here are the top-ranked phosphotungstic acid companies as of December, 2024: 1.Knowde.
Table of Contents
Phosphotungstic acid, an inorganic heteropoly acid of tungsten, is known for its various aliases including tungstophosphoric acid and 12-tungstophosphoric acid, with abbreviations TPA and PTA. A notable example is H3PW12O40.
As a catalyst, phosphotungstic acid facilitates numerous organic synthetic reactions, demonstrating thermal stability up to 400°C. It is applicable both as a homogeneous catalyst in solution for hydration, ester exchange, and polymerization, and as a heterogeneous catalyst on substrates like alumina or silica.
The Prins reaction exemplifies its role as an acid catalyst, producing homoallylic alcohols from aldehydes and allyl compounds.
It is employed as a staining agent for phosphoric acid colorimetric determination and for cell negative staining in transmission electron microscopy.
Phosphotungstic acid effectively precipitates polar proteins, targeting guanidino, epsilon-amino, and imidazole groups.
Its chemical formula, molecular weight, and CAS number are H3O40PW12, 2880.2, and 1343-93-7, respectively. The 24-hydrate form melts at 89°C, appearing as a white or yellow-green crystalline powder, soluble in water, ethanol, and diethyl ether, exhibiting high acid strength in concentrated solutions.
The anion structure exhibits tetrahedral symmetry, with 12 tungsten atoms forming a cage around a centrally placed phosphorus atom.
Typically sold as a hydrate, its formula is H3O40PW12・nH2O, with the CAS number 12501-23-4, predominantly isolated as 24-hydrate but also available in 6-hydrate.
It is synthesized by reacting sodium tungstate dihydrate with phosphoric acid, acidified using hydrochloric acid.
Handling requires protective gear, with fire safety precautions due to potential toxic gas release. Store as a hydrate in sealed containers, refrigerated, away from sunlight, in a locked area.
*Including some distributors, etc.
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Rankin Biomedical, established in 1995 and headquartered in Michigan, USA, is a supplier of refurbished and new anatomic pathology lab equipment. The company supplies a line of histology instruments, consumables, supplies and repair parts to pathology, dermatopathology, gastroenterology, MOHS and research centres. Its full line of instrumentation includes over 250 manufacturers and models consisting of grossing stations, tissue processors, slide and cassette printers, embedding stations and microtomes. The company also offers lab set up consulting, installation and training, as well as service contracts and surplus equipment acquisition.
California Pacific (CP) Lab Safety is an American manufacturer and distributor of laboratory safety solutions founded in Novato, California in 1996. The company produces both lab and environmental safety equipment and devices, including waste containers, safety vents, biodegradable bags, and personal protective equipment (PPE). They also offer custom design and engineering services for customer projects, as well as technical support and quality assurance. CP Lab Safety serves California’s government agencies, departments and offices, as well as clients in its research, education, and healthcare institutio.
Knowde is an online marketplace connecting buyers and sellers of chemicals, ingredients, and materials. Founded in 2017 and based in Austin, Texas. The company makes buying and selling in the chemical industry easier by giving users an easy-to-use platform. Knowde offers a wide range of products, from specialty chemicals and raw materials to finished products and formulations, all available for purchase with a few clicks. With its robust search capabilities, powerful analytics, and personalized customer service.
TCI America (TCI) was founded in 1946 and is a worldwide manufacturer of specialty organic chemicals. The company produces organic laboratory chemicals as well as pharmaceutical, cosmetic, and functional materials. TCI’s product segments include Chemistry, Life Science, Materials Science, Analytical Chemistry, and Custom & Bulk. For materials science, the company manufactures battery materials, nanocarbon materials, and magnetic materials. For life sciences, the company produces antibodies, reagents, and chemicals for cancer research. The company produces HLC, NMR, various chemicals, and resins and media for analytical chemistry.
Oxford Lab Fine Chem LLP (OLFC) is an Indian manufacturer and exporter of laboratory chemicals as well as intermediates established in 2015 following the merger of Oxford Lab Chem and Oxford Laboratory. Based in Mumbai, Maharashtra, the company’s extensive chemical portfolio includes various bases, acids, standards, solutions, and buffers. These are offered in different grades, such as AR/GR and HPLC. OLFC primarily supplies the industrial processes of clients in the pharmaceutical and chemical processing sectors in over 40 countries, as well as in India’s educational and laboratory institutions.
Columbus Chemical Industries, based in Columbus, Wisconsin, USA, is a manufacturer and distributor of specialty chemicals. The company offers chemical analysis, problem-solving skills, and chemical packaging and processing services for high-purity and ultra-pure chemical needs of several industries such as the pharmaceutical, semiconductor, and energy industry. Its product range include nitric acid, salts, and chemical solvents, which can be packaged in bottles, drums, or in high capacity totes. The company operates under an ISO 9001:2015 certified Quality Management System and is a member of the National Association of Chemical Distributors.
MDPI was founded in 1996 and is based in Basel, Switzerland. The company is a pioneer in scholarly, open-access publishing, featuring 417 peer-reviewed journals and 9 conference journals with over 115,000 academic contributors. The company’s journals fall into 10 subjects including biology, economics, medicine, physical sciences, and public health. The company’s pear review system is a dingle-blind assessment with at least two independent reviewers, followed by a final decision of acceptance or rejection by the editor-in-chief. Authors may appeal editorial decisions in case of rejection of articles.
Nelson Jameson Inc., established in 1947 and headquartered in Marshfield, USA, is a supplier and distributor of food, dairy, and beverage processing plants. The company distributes thousands of food processing products representing over 850 vendors. The products are categorized in several areas like production, processing & flow control, sanitation, maintenance and laboratory equipment. It also offers custom solutions based upon the company's food safety program developed specifically for food and dairy processors and inspired by FSMA, regulatory bodies, and the latest research in food safety and quality. The company offers custom managed inventory and ordering solutions developed specially for the food industry.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Knowde |
66.7%
|
| 2 | Tokyo Chemical Industry Co., Ltd. |
33.3%
|
Derivation Method
The ranking is calculated based on the click share within the phosphotungstic acid 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
|
3 | 60.0% |
|
Japan
|
1 | 20.0% |
|
Switzerland
|
1 | 20.0% |
