... : Shined with metallic 2.Purity: 4N 3.Si: 99.99% 4.Application: Widely used in fire-resistant material Industry Specifications4N Silicon Powder ... : Applied for silicon nitride, silicon carbide, (silicon titanium, silicon aluminum) and other alloys, silicone, ceramics, electronics, military, chemical, and photovoltaic industries. high purity silicon metal 4n