The working principle of electronic grade silica sol is mainly based on its unique physical and chemical properties. Its high specific surface area and pore structure give it excellent adsorption performance, and it can absorb moisture, gas or other harmful substances in the surrounding environment. At the same time, the silicon-oxygen bond in the silica sol has a high bond energy, so that the silica sol does not undergo chemical reactions at high temperatures, thereby maintaining its stability. These characteristics make electronic grade silica sol have unique application value in many high-tech fields.