Ultra high purity 99.99%! Indian tantalum pentoxide | Optimal high-performance oxide for optical and electronic materials | Optical thin films, next-generation devices, research and development
Tantalum pentoxide (Ta₂O₅) is a white powder oxide with high dielectric constant, high heat resistance, and high corrosion resistance, making it an essential material in the optical and electronic fields. This product is of Indian origin, OPTICAL GRADE (purity of 99.99% or higher), and is available in powder form, featuring extremely high transparency and refractive index control. It particularly achieves both high transparency and high refractive index in optical glass and optical thin films, and is utilized in cutting-edge optical devices, electronic components, and communication devices. Impurity management is strictly controlled at levels below ppm (with Fe, Cr, Mn, Mo, Ni all below 1 ppm, Nb below 15 ppm, and F below 150 ppm), and rigorous quality assurance compliant with international standards is implemented. Furthermore, each lot undergoes analysis via ICP-OES and XRF before a Certificate of Analysis (COA) is issued, and it is supplied in drums with moisture-proof liners, ensuring stability even during long-term storage. We can flexibly accommodate orders from sample sizes (1kg, 5kg) to mass production scale, with a proven track record in both research and commercial applications in the European and Japanese markets. Additionally, adoption is advancing in the aerospace and next-generation electronics fields, with demand on the rise.
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[Summary] - Product Name: Tantalum Pentoxide (Ta₂O₅) OPTICAL GRADE - Chemical Formula: Ta₂O₅ - Country of Origin: India - Packaging: Plastic drum (with inner liner) - Minimum Order Quantity: Available from samples (1kg, 5kg) - Delivery Time: Approximately 2 to 3 months after order (subject to stock and transportation conditions) [Specifications] - Appearance: White powder - Purity (Ta₂O₅ by Difference, excl. F & LOI): 99.99% or higher - Loss on Ignition (LOI, @1050℃): 0.2% or less - Particle Size: Powder (20 mesh or less) - Impurities (maximum values, % equivalent) - F: 0.015% - Cr: 0.0001% - Fe: 0.0001% - Mn: 0.0001% - Mo: 0.0001% - Ni: 0.0001% - Nb: 0.0015% [Contact Information] Kowa Company, Ltd. Industrial Related Business Division, Resource Materials Department, Inorganic Materials Section TEL: 03-3279-8057 FAX: 03-3279-8029 *For inquiries via the web, please use the inquiry form below.
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Optics: Optical glass, optical thin films, lens materials Electronic components: Tantalum capacitors, high dielectric constant oxide films Research and development: Next-generation optical devices, communication device materials Ceramics: High heat-resistant ceramics, special functional materials
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Company information
Kowa Co., Ltd. is a company with a history of over 120 years, founded in 1894 as a cotton fabric wholesaler. As the core company of the Kowa Group, it has both trading functions for the import and export of textiles, machinery, building materials, and trilateral trade, as well as manufacturing functions for pharmaceuticals, medical devices, vision units, energy-saving, and energy-creating related products, covering a wide range of business fields. One of its divisions, the Kowa Resource Materials Department, Inorganic Materials Section, engages in wholesale business for the import and export of raw materials and also acts as a sales agent for distinctive domestic and overseas raw materials.