Kowa Company, Ltd. General Trading Business Unit Official site

Tungsten trioxide (WO₃) from India for optical applications

Optimize optical properties with high-purity WO₃! Contributes to refractive index adjustment.

In the optical industry, precise control of the refractive index, which influences the performance of lenses and optical elements, is essential. In particular, accurately adjusting the refractive index of materials is crucial for optimizing light transmission and reflection rates to achieve the best optical performance. Tungsten trioxide (WO₃), due to its high refractive index characteristics, contributes to refractive index adjustment in the design of optical elements. High-purity, China-free WO₃ provides stable quality and supply systems, enhancing the reliability of optical products. 【Application Scenarios】 - Optical lenses - Optical filters - Electrochromic devices - Photocatalysts 【Benefits of Implementation】 - Improved optical performance due to high refractive index - Increased design flexibility in optics - Assurance of stable quality and supply systems

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basic information

【Features】 - High purity of 99.9% or more (representative value) - High refractive index - Excellent thermal stability and chemical stability - China-free - Selection of particle size and grade according to application 【Our Strengths】 Kowa Co., Ltd. provides optimal products tailored to customer needs based on years of experience and achievements. We use domestically sourced materials in India to ensure stable supply. Please feel free to contact us with any questions or sample requests.

Price information

We will provide the best price based on information exchange regarding usage, quantity, and other conditions.

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Applications/Examples of results

【Applications and Examples】 Tungsten trioxide (WO₃) is expected to be applied in the following fields, leveraging its high density, high melting point, light responsiveness, and electrochemical properties. ■ Electronics Field - Electrochromic displays (smart glass, smart windows) - Insulation layers for semiconductor devices, constituent materials for oxide memory (ReRAM) ■ Energy and Battery Field - Anode materials for lithium-ion batteries, electrodes for capacitors - Additives for solid electrolyte devices ■ Sensing and Catalysis Field - Oxide sensing materials for gas sensors detecting NO₂, NH₃, VOCs, etc. - Visible light-responsive photocatalysts for water splitting and organic decomposition applications ■ Materials and Functional Materials Field - X-ray and γ-ray shielding materials (for polymer composites) - High-heat-resistant yellow pigments, glass and ceramic coloring materials - Optical filters, sputtering target materials These fields are drawing attention as materials that support the development of functional materials and the design of next-generation products.

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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.