3N High Purity Silicon Powder Formula: Si Appearance: Metallic dark grey Particle: ( ... (120-200)mesh, (120-325)mesh, 3N High Purity Silicon PowderFormula: SiAppearance: Metallic dark greyParticle: (0-120)mesh, ... or 250kg/drumApplication: Silicon nitride,silicon carbide, (silicon titanium alloy, silicon aluminum alloy and other alloys), organic silicon, ceramic industry, electronics ,military industry, ...