Precipitated silica Felcosil-165, a form of synthetic amorphous silicon dioxide, is derived from quartz sand, a crystalline form of silicon dioxide. The physical properties of precipitated silica can be manipulated during the manufacturing process to deliver products with a wide range of performance-enhancing features engineered for many different end-use applications.
PPG Silica140 Powder White Powder form, it can be dissolved by NaOH, HF. Other kinds of acid, water and solvents cannot dissolve the product. Resistance to high temperature, no combustion, good insulation, odourless properties
