ニッチツ　ハイシリカ事業本部 List of Products and Services

The "NHP Series" is a product coated with titanium oxide on crystalline silica and cristobalite, which have excellent light transmittance. In addition to high performance in self-cleaning (anti-soiling), air purification, antibacterial, and antiviral properties, it also exhibits strong effects in antibacterial and antiviral activities even in dark places where light does not reach. Furthermore, the liquid types "NHP-COAT" and "NHP-COATαAg" have obtained the PIAJ certification mark from the Photocatalyst Industry Association. 【Features】 ■ Coating of titanium oxide on crystalline silica and cristobalite with excellent light transmittance ■ Patent from Nagasaki Prefecture and Nagasaki University ■ Expected to decompose oxidatively even in areas not directly exposed to ultraviolet light ■ High performance in self-cleaning (anti-soiling), air purification, antibacterial, and antiviral properties ■ For those wishing to purchase antibacterial glazes, we can also introduce glaze manufacturers with expertise *For more details, please refer to the materials. Feel free to contact us as well.

• Chemicals

The "High Silica N Series" is an ultra-fine silica powder made from high-purity natural quartz. It is suitable for various applications such as additives (like alumina), industrial tools, various glass materials, and semiconductor encapsulants. It minimizes contamination from grinding machines and media to the utmost extent, maintaining the original purity of the quartz. Leveraging our unique grinding and classification (wet sieving) technology, we have developed ultra-fine silica powder with an average particle size of less than 1.5 μm. 【Manufacturing Process】 1. Wet grinding 2. Classification 3. Dehydration 4. Drying 5. Crushing 6. Product *For more details, please refer to the PDF document or feel free to contact us.

• Ceramics
• Glass

High silica "FILLER GRADE," obtained by refining materials such as siliceous stone and quartz, is utilized in semiconductor fillers and special glass, among other applications. [Applications] ■ Semiconductor fillers ■ Resin fillers ■ Special glass ■ Glazes, etc. Additionally, our company is capable of providing products with quality and particle size distribution tailored to customer requirements, thanks to our well-equipped production facilities and strict quality control system. *For more details, please refer to the catalog or feel free to contact us.

• Ceramics
• Glass
• others

Nitchitsu Co., Ltd., which provides "high silica" (refined silica powder, etc.) to a wide range of industrial fields, has prepared a technical document explaining the classification and characteristics of silica, as well as the features of quartz. Additionally, we introduce examples of applications such as "fused quartz glass" and "synthetic quartz glass" produced by melting quartz powder. ■ Characteristics of Silica - High heat resistance. It can withstand high temperatures of over 1000°C! - High chemical resistance. It slightly dissolves in acids and alkalis, but the rate of dissolution is extremely low. ■ Applications For semiconductor industry, LCDs, optical fibers, optics, scientific research, mercury lamps, sterilization lamps, infrared lamps, optical fibers, semiconductor purification containers, crucibles for pulling silicon single crystals, and more... *For more details, please refer to the PDF document or feel free to contact us.

• Ceramics
• Glass
• others

This is a technical document from Nichitsu Co., Ltd., which provides "high silica" (refined silica powder, etc.) to a wide range of industrial sectors, explaining the classification and properties of silica, as well as the characteristics of quartz. Additionally, it introduces examples of applications such as "fused quartz glass" and "synthetic quartz glass," which are produced by melting quartz powder. [Contents] - Classification of silica - Granular (GR) and Glassy (GL) - What is quartz? - Characteristics of quartz - Quartz glass, and more *For more details, please refer to the PDF document or feel free to contact us.

• Ceramics
• Glass
• others

High silica 'OPTICAL GRADE' obtained by refining materials such as silica and quartz is utilized in HD glass substrates and various lenses for optical devices. 【Applications】 ■H: HD glass substrates, various lenses for optical devices, etc. ■M/L: Crystal glass, glazes, etc. In addition, our company is capable of providing products with quality and particle size distribution tailored to customer requirements, thanks to our well-equipped production facilities and strict quality control system. *For more details, please refer to the catalog or feel free to contact us.

• Ceramics
• Glass
• others

High silica "HIS GRADE," obtained by refining materials such as chert and quartz, is utilized in quartz crucibles and quartz glass, among other applications. [Applications] - Quartz crucibles - Quartz glass, etc. Additionally, our company is capable of providing products with quality and particle size distribution tailored to customer requirements, thanks to our well-equipped production facilities and strict quality control system. *For more details, please refer to our catalog or feel free to contact us.

• Ceramics
• Glass
• others

High silica 'HIGH GRADE' obtained by refining materials such as chalcedony and quartz is utilized in ultra-high purity optical glass and CCD cover glass. [Applications] ■ HQ: Ultra-high purity optical glass ■ SQ: Optical fiber, ultra-high purity optical glass ■ USH/SH: CCD cover glass, CMOS cover glass, fiber scopes, light guides, sterilization lamp glass, optical glass In addition, our company is capable of providing products with quality and particle size distribution tailored to customer requirements, thanks to our well-equipped production facilities and strict quality control system. *For more details, please refer to the catalog or feel free to contact us.

• Ceramics
• Glass
• others

High silica 'FILLER GRADE' obtained by refining materials such as siliceous stone and quartz is utilized in semiconductor fillers and special glass, among other applications. 【Applications】 ■ Semiconductor fillers ■ Resin fillers ■ Special glass ■ Glazes, etc. Additionally, our company is capable of providing products with quality and particle size distribution tailored to customer requirements, thanks to our well-equipped production facilities and strict quality control system. *For more details, please refer to the catalog or feel free to contact us.

• Ceramics
• Glass
• others

At the Shikimachi Factory and the Emura Factory (Nagasaki Prefecture), we respond to our customers' requests by utilizing advanced production equipment. We have two types of grinding equipment: a continuous wet grinding system with minimal impurity contamination, and a batch dry grinding system capable of handling various particle sizes. By using these appropriately, we produce products with quality and particle size distribution tailored to customer needs. Additionally, our refining equipment includes ultra-high purity facilities for flotation concentration, chemical processing, and heat treatment, allowing us to provide high-quality products. [Production Equipment] ■ Continuous wet grinding: Minimal impurity contamination ■ Batch dry grinding: Capable of handling various particle sizes ■ Ultra-high purity facilities for flotation concentration, chemical processing, and heat treatment *For more details, please feel free to contact us.

• Ceramics
• Glass
• others

"High Silica (refined silica powder, etc.)" is a high-value-added material utilized in cutting-edge fields of the IT-related industry, such as quartz crucibles and quartz glass, as well as specialty glass. Using silica from India, China, and Sri Lanka, along with quartz from Brazil as the main raw materials, high-purity products with a purity of 99.6% to 99.9% are produced through advanced grinding, classification, and chemical processing technologies at the Nagasaki and Kamimachi factories. Furthermore, by applying the manufacturing technology of high silica, we have established robust production facilities and a strict quality control system to meet the increasingly sophisticated needs of our customers. [Applications] ■ Quartz crucibles and quartz glass ■ Specialty glass ■ High-purity optical lenses ■ CCD cover glass ■ Semiconductor-related fillers, etc. *For more details, please feel free to contact us.

• Ceramics
• Glass
• others