Nano Sio2 Powder Silicon Dioxide Hydrophilic Fumed Silica 200 with CAS 112945-52-5 for Silica Gel/Upr. High Specific Surface Area: GESEESIL-200 offers 200 m2/g specific surface area for superior performance. Hydrophilic Nature: Hydroxyl groups enable water dispersibility and hydrogen binding capabilities. High Purity Content: Silica dioxide content exceeds 99.8% with low volatile matter of 0.82%. Free Sample Support: Free samples available for testing; customer only pays shipping fee. Rapid Delivery: Production completes within 5-7 days after payment confirmation. Versatile Applications: Used in rubber, sealants, plastics, resins, paints, inks, and cosmetics. Thermal Stability: Features small particle size and excellent thermal insulation properties. 24/7 Online Support: Dedicated technical team available 24 hours for sourcing and service needs.