Excellent Reinforcing & Rheology Control: Effectively enhances mechanical strength of rubber and polymers, regulates rheology of coatings and emulsions, inhibits pigment sedimentation, and improves product durability and formulation stability.
Widely Used Functional Additive: As a commonly used inorganic additive, it provides reliable anti-caking, thickening and matting effects while supporting product consistency.
Versatile Multi-Industry Applications: In addition to rubber tires and food products, it is widely used in coatings, cosmetics, pharmaceuticals, animal feed, printing inks and adhesives.
Excellent Formulation Compatibility: Its high chemical inertness, low toxicity and adjustable surface properties make it a valuable ingredient in a variety of industrial and commercial formulations.
Quality Assurance
Rigorous quality control and full regulatory compliance assured.
Sustainable Development
Sustainable processes cut waste, lower emissions, and save costs.
Specialty Solutions
Tailored fine chemicals that enhance efficiency and outcomes.
Chemical Manufacturer
A trusted manufacturer capable of stable, high-volume production and supply.
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Product Description
Product Description-Silicon dioxide CAS#7631-86-9
Hard, glass-like, transparent or translucent granules with an average particle size of approximately 5 mm. They are characterized by high porosity and a large specific surface area. They exhibit strong water vapor adsorption capabilities, even at low relative humidity. They selectively adsorb certain harmful substances from the medium; due to their spherical shape and smooth surface, they possess high mechanical strength, resist breakage, and offer low flow resistance. They are insoluble in water and inorganic acids (except hydrofluoric acid) but soluble in caustic alkali solutions.
Product Applications-Silicon dioxide CAS#7631-86-9
Silicon dioxide acts as a moisture absorber for food preservation, high‑molecular‑weight protein adsorbent in industrial fermentation, and drying/purification agent for industrial gases (CO₂, H₂, O₂).
As an anti‑caking agent, it is approved for powdered flavorings (max 80 g/kg) and powdered products including milk, cocoa, egg powder, non‑dairy creamer and instant coffee (max 15.0 g/kg).
It also serves as an adhesive bonding phosphor coatings to flat glass surfaces in picture tubes, projection tubes and oscilloscope tubes.
About 70% of precipitated silica is used as a reinforcing filler for natural and synthetic rubber. Other industrial uses include synthetic resin fillers, ink thickeners, anti‑settling agents for coatings and emulsions, matting agents, polishing agents, pesticide carriers and paper fillers. With good electrical insulation, heat resistance and non‑staining properties, it is widely applied in rubber hoses, conveyor belts, gaskets, rollers, medical products, color TV cables, wire casings and transparent rubber soles. It also functions as a plastic anti‑blocking agent, liquid pharmaceutical adsorbent, and filler for cosmetics and papermaking.
Additionally, silicon dioxide is the primary raw material for high‑temperature UV‑transparent quartz glass and optical fibers, and is consumed in large volumes as viscosity modifiers, pharmaceutical excipients and catalyst carriers.
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Product Data
Chemical Properties-Silicon dioxide CAS#7631-86-9
Safety Information-Silicon dioxide CAS#7631-86-9
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