SEMISIL 50L (AEROSIL® OX 50 equivalent)

SEMISIL 50L (equivalent to AEROSIL® OX 50) is a high-performance hydrophilic fumed silica manufactured by SEMITECH. Low BET, large particles. With a BET surface area of 35–65 m²/g, SEMISIL OX50 delivers precise rheology control and reinforcement across demanding industrial formulations.

Quick Profile

• Surface Area (BET): 35–65 m²/g
• Primary Particle Size: ~40 nm
• Tamped Density: ~130 g/L
• pH (4% dispersion): 3.6–4.5
• Composition: SiO₂ ≥ 99.8%
• CAS Number: 112945-52-5