Breathing in dust from silica-containing materials can lead to Silicosis. Silica dust particles become trapped in lung tissue, causing inflammation and scarring. The particles also reduce the lungs' ability to take in oxygen. Many products use fumed silica (silicon dioxide) as a filler or flow control additive. Many other metal oxides including TiO2, ZnO, and Fe2O3 are produced as particulate solids with a primary particle size below 100 nm. Fumed silica powder has a high surface area. It is extremely fluffy and semi-free flowing and usually difficult to handle. The use of a fine-dust filter respirator by material handlers is recommended. Fumed silica is best kept as dry as possible. The powder is very low density and is extremely difficult to "wet out"; it floats on the liquid surface. Fumed silica can produce translucent or clear, non-yellowing rubber products with a minimum aging effect. Standard colloidal silica is stable at a pH of 8 – 10.5 and has a stabilized anionic surface charge. They enable silicone to be used safely in ovens and direct contact with food. And we also offer a further special feature: AEROSIL® fumed silica enables you to manufacture colorless, highly transparent silicone rubber which is used in medical applications. Silica fume is added to Portland cement concrete to improve its properties, particularly its compressive strength, bond strength, and abrasion resistance. The proper disposal of silica fume, an industrial by-product waste, is one of the major issues for environmentalists worldwide since dumping silica fume as a waste material may cause severe environmental problems and hazards. If you are looking for high quality, high purity, and cost-effective Fumed silica, or if you require the latest price of Fumed silica, please feel free to email contact mis-asia.