日本精鉱 List of Products and Services

The "STOX Series" is a high-concentration antimony trioxide masterbatch made using our antimony trioxide, backed by years of experience as an antimony manufacturer. By solidifying the powdered antimony trioxide with rubber, we can achieve dust-free handling and improve work efficiency, contributing to a better working environment. Additionally, it is excluded from the regulations on specific chemical substances and is also exempt from being classified as a toxic substance, making storage, transportation, and handling easier. 【Product Lineup】 ■NBRM80 ■CRM80 ■ECOM80 ■EPDMM80 *For more details, please refer to the PDF materials or feel free to contact us.

• Composite Materials

The "STOX Series" is a high-concentration antimony trioxide masterbatch that uses our antimony trioxide, backed by years of experience as an antimony manufacturer. By solidifying the powdered antimony trioxide with resin, we can reduce dust and improve work efficiency, contributing to a better working environment. Additionally, it is excluded from the regulations on specific chemical substances and is also exempt from being classified as a toxic substance, making storage, transportation, and handling easier. 【Product Lineup】 ■PVCMK80-T ■PVCMK80-D *For more details, please refer to the PDF document or feel free to contact us.

• Composite Materials

Antimony trisulfide is primarily used as a friction modifier to improve the performance of automotive brakes. By using it in friction materials such as brake pads and brake linings, wear resistance can be enhanced. Please feel free to contact us when you need assistance. 【Packaging Method】 ■Net Weight: 25kg ■Packaging Material: Paper bag (Outer: Kraft 3 layers, Inner: Polyethylene 1 layer) *For more details, please refer to the PDF document or feel free to contact us.

• Composite Materials

"PATOX-MK" is a general-purpose antimony trioxide produced through manufacturing commissioned to overseas partners, utilizing our long-standing experience in refining and processing technology as an antimony manufacturer. This product has quality equivalent to our reliable general-grade PATOX-M and is widely usable for flame retardants. All quality assurance and services are handled responsibly by our company. 【Quality Standards (Excerpt)】 ■Sb2O3: 99.5% min. ■As: 0.1% max. ■Pb: 0.1% max. ■Fe: 0.01% max. ■S: 0.01% max. *For more details, please refer to the PDF document or feel free to contact us.

• Composite Materials

"SA-A" is a special flame-retardant grade that helps in the transparency of various synthetic resins or enhances the heat resistance and hydrolysis resistance of various engineering plastics. It is possible to impart high flame retardancy while maintaining the inherent heat resistance and hydrolysis resistance of the resin without inhibiting the resin properties. By employing advanced particle size control technology and thorough quality management, it is a fine particle type that excludes moisture (crystal water and adhering water) that can cause hydrolysis of the resin, unlike the conventional characteristics of sodium antimonate, which includes crystal water and coarse particle size. 【Basic Data (Excerpt)】 ■Chemical formula: NaSbO3 ■CAS number: 15432-85-6 ■Appearance: White powder ■Bulk density (g/cm3): 0.6 ■NaSbO3 (%): 98.4 *For more details, please refer to the PDF document or feel free to contact us.

• Composite Materials

We would like to introduce "Bonaite," which is being developed by Nippon Seiko Co., Ltd. This product is represented by the mineral name with the chemical formula: Cu5FeS4, and our company is working towards the industrial production of synthetic Bonaite. It has lubricating properties and is expected to be used as a solid lubricant. If you are interested in more details about the developed product, please feel free to contact us. 【Product Details】 ■ Substance Name: Bonaite ■ Chemical Formula: Cu5FeS4 ■ CAS RN: 1308-82-3 ■ Molecular Weight: 501.84 ■ Density: 5.09 g/cm³ *For more details, please refer to the PDF materials or feel free to contact us.

• others

The "SULMICS series" is a newly added lineup of products consisting of various metal sulfides. As the first phase, we have started the actual production of tin sulfide, which is used as a solid lubricant in brake pads for automobiles and other applications. Additionally, we are developing products of other metal sulfides tailored to market needs and are providing samples of these developed products. If you are interested, please feel free to contact us. [Example of our tin sulfide product (Tin(II) sulfide: SnS)] ■ True specific gravity (g/cm3): 5.2 ■ Bulk density (ml/100g): 38.5 ■ Total tin (wt%): 79.0 ■ Total sulfur (wt%): 20.9 ■ Particle size distribution (dry sieve) (wt%): +45μm, 5.9 *For more details, please refer to the PDF document or feel free to contact us.

• others

At Nippon Seiko Co., Ltd., we handle "Iron Sulfide." This product is utilized as a solid lubricant and is also being researched and developed as an active material for solid batteries. By combining it with other relatively expensive metal sulfides, there is a possibility of reducing costs while maintaining lubrication effectiveness. Furthermore, our iron sulfide is a synthetic product and does not contain hard natural materials like quartz. 【Product Details】 ■ Substance Name: Iron(II) Sulfide ■ Chemical Formula: FeS ■ CAS RN: 1317-37-9 ■ Molecular Weight: 87.91 ■ Density: 4.8 g/cm³ ■ Melting Point: 1194°C *For more details, please refer to the PDF document or feel free to contact us.

• others

At Nippon Seiko Co., Ltd., we handle "copper sulfide." This product has lubricating properties and is used as a solid lubricant. It is also known for its use as a wastewater treatment agent and for possessing semiconductor properties. Currently, both copper(II) sulfide (CuS) and copper(I) sulfide (Cu2S) are available as developed products. 【Product Details】 ■ Substance Name: Copper(II) Sulfide ■ Chemical Formula: CuS ■ CAS RN: 1317-40-4 ■ Molecular Weight: 95.61 ■ Density: 4.64 g/cm³ *For more details, please refer to the PDF document or feel free to contact us.

• others

"AS-S1" is an amorphous brown powder primarily composed of antimony and sulfur. Commonly known as pentasulfide of antimony, it is mainly used as a surface treatment agent for the sulfurized finish on copper alloy building materials such as brass and bronze. Additionally, the sulfurized finish gradually develops a dark brown hue over time. As a high-quality surface finish with a sense of heaviness and durability, it is widely used in the entrances and elevator doors of shrines, temples, Western-style buildings, and public facilities. [Features] - For sulfurized finishing - Main components are antimony and sulfur *For more details, please refer to the PDF document or feel free to contact us.

• others

"SULMICS-121" is a tin sulfide formulation that contains graphite, part of the "SULMICS series" which includes metal sulfides. It is primarily used as a solid lubricant in applications such as automotive brake pads. *For more details, please download the PDF or feel free to contact us.*

• Other metal materials