Antimony Trisulfide
Grade Lineup
Our antimony trisulfide is primarily used as a friction material in brake pads and brake shoes for automobiles and other vehicles. When added at a few percent, it helps maintain an appropriate coefficient of friction, resulting in stable braking performance. In addition, it contributes to improved brake characteristics by enhancing wear resistance and product life, increasing high-temperature stability, and reducing noise during braking.
Antimony trisulfide is also used in pyrotechnics. In fireworks, it is added in small amounts to fuel compositions to generate light and sound. In explosives, it serves as a primer or combustion regulator and is used in applications such as ammunition primers, smoke signals, and detonating cords.
Antimony trisulfide is a major component of natural antimony ore. While naturally processed antimony trisulfide is sometimes used in industrial applications, our company uses synthetically produced antimony trisulfide to ensure more consistent supply and stable product quality. We offer four standard grades, allowing customers to select the particle size best suited to their application needs.
Grade Comparison Table
| Grade | Purity | Particle Size Distribution |
|---|---|---|
| P2 | Sb2S3 ≥ 98.0% | ≥ 80.0% passing 45 µm |
| P3 | Sb2S3 ≥ 98.0% | ≥ 85.0% passing 45 µm |
| P4 | Sb2S3 ≥ 98.0% | ≥ 95.0% passing 45 µm |
| P5 | Sb2S3 ≥ 98.0% | ≥ 99.5% passing 45 µm |