What is a Silicon dioxide (SiO₂)?

Silicon dioxide (SiO₂) is one of the most abundant inorganic compounds on Earth, commonly found as quartz, crystal, and the primary component of sand. It is chemically stable and possesses high hardness, making it widely used in the production of glass, ceramics, and concrete. In its fine powder form, it serves as an anti-caking agent in food products such as powdered soups and seasonings. Silicon dioxide also finds applications in pharmaceuticals, cosmetics, rubber, and paint industries as a versatile additive. Colloidal silica is crucial in the semiconductor and optics industries, particularly for wafer polishing and as an insulating material. Naturally, it exists in both crystalline and amorphous forms. While health effects vary based on particle size and exposure method, the forms used in food are generally recognized as safe. Silicon dioxide plays a vital role across multiple fields—from environmental materials and industrial processing to applications closely linked to human life.

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