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Colloidal Silica is a stable dispersion of fine amorphous silica particles in water or other liquid mediums.
Colloidal Silica is widely used in coatings, catalysts, precision casting, polishing, and pharmaceutical applications.
Colloidal Silica is valued for its high surface area, excellent stability, and unique rheological properties.
CAS Number: 7631-86-9
EC Number: 231-545-4
Molecular Formula: SiO₂
Molecular Weight: 60.08 g/mol
Synonyms: Colloidal Silica, Silica Sol, Colloidal Silicon Dioxide, Hydrated Silica Dispersion, Precipitated Silica Colloid, Silica Colloidal Suspension, Silicon Dioxide Colloid, Silica Dispersion, Aqueous Silica Sol, Amorphous Colloidal Silica, Fumed Silica Colloid, Silicic Acid Colloid, Stabilized Colloidal Silica, Nano-Silica Suspension
APPLICATIONS
Colloidal Silica is used in the production of high-performance coatings to improve abrasion resistance and hardness.
Colloidal Silica is added to paints and varnishes to enhance surface durability and reduce gloss.
Colloidal Silica is used as a binder in precision investment casting to form strong ceramic shells.
Colloidal Silica is incorporated in paper manufacturing to improve ink absorbency and printability.
Colloidal Silica is employed in catalysts and catalyst supports to increase surface area and dispersion.
Colloidal Silica is used in polishing slurries for semiconductor wafers and optical components due to its fine particle size.
Colloidal Silica is applied in pharmaceutical formulations as a glidant and anti-caking agent.
Colloidal Silica is found in personal care products like toothpaste and facial scrubs for gentle exfoliation.
Colloidal Silica is used in rubber and plastics to enhance mechanical properties and reinforce polymer matrices.
Colloidal Silica is utilized in refractory materials to improve thermal shock resistance and binding properties.
Colloidal Silica is added to concrete and cement formulations to increase compressive strength and durability.
Colloidal Silica is employed in batteries and fuel cells as a stabilizing and binding agent.
Colloidal Silica is used in textile finishing processes to enhance wrinkle resistance and durability.
Colloidal Silica is incorporated in adhesives and sealants to improve bonding strength and stability.
Colloidal Silica is utilized in foundries for core and mold reinforcement in metal casting.
Colloidal Silica is used in chromatography as a support matrix for separation techniques.
Colloidal Silica is included in food and beverage processing for clarification and stabilization.
Colloidal Silica is employed in water treatment to aid in coagulation and filtration processes.
Colloidal Silica is used in glass manufacturing to improve surface hardness and thermal resistance.
Colloidal Silica is applied in wood coatings to enhance scratch resistance and prolong product life.
Colloidal Silica is found in ceramics to reduce shrinkage and improve green strength before firing.
Colloidal Silica is employed in electronics for insulation, heat dissipation, and mechanical reinforcement.
Colloidal Silica is used in anti-slip floor coatings to increase surface friction and safety.
Colloidal Silica is included in paints and lacquers as a matting and thickening agent.
Colloidal Silica is used in ink formulations to adjust viscosity and improve drying time.
Colloidal Silica is used in soil stabilization projects for geotechnical engineering.
Colloidal Silica is incorporated in nanotechnology applications for functionalized materials and coatings.
Colloidal Silica is employed in biomedical applications including drug delivery systems and tissue scaffolds.
Colloidal Silica is used in desiccants and moisture control systems due to its hygroscopic nature.
Colloidal Silica is found in oil and gas drilling fluids to stabilize boreholes and enhance fluid performance.
Colloidal Silica is used in precision investment casting to enhance mold stability.
Colloidal Silica is added to coatings to improve abrasion resistance and hardness.
Colloidal Silica is used in paper manufacturing to improve ink absorption and printability.
Colloidal Silica is utilized in polishing slurries for semiconductor wafer processing.
Colloidal Silica is applied in the electronics industry for chemical mechanical planarization.
Colloidal Silica is used in sol-gel formulations for thin film coatings.
Colloidal Silica is included in concrete and cement formulations to improve strength and durability.
Colloidal Silica is used as a binder in ceramic and refractory applications.
Colloidal Silica is applied in paints to enhance weather resistance.
Colloidal Silica is used in textile treatment for wrinkle resistance and antistatic properties.
Colloidal Silica is added to catalysts as a support material in industrial reactions.
Colloidal Silica is used in adhesives to increase viscosity and improve bonding.
Colloidal Silica is applied in dental materials for mechanical reinforcement.
Colloidal Silica is used in sealants and caulks to enhance thixotropy and sag resistance.
Colloidal Silica is included in battery slurries for enhanced stability.
Colloidal Silica is used in pharmaceuticals as a glidant in tablet production.
Colloidal Silica is employed in chromatography columns as a packing material.
Colloidal Silica is used in cosmetics for oil absorption and mattifying effect.
Colloidal Silica is included in sunscreens to improve dispersion of active ingredients.
Colloidal Silica is used in polishing optical lenses and mirrors.
Colloidal Silica is applied in 3D printing slurries to stabilize formulations.
Colloidal Silica is used in water-based inks to enhance pigment suspension.
Colloidal Silica is used in glass coatings for anti-reflective and hydrophilic effects.
Colloidal Silica is applied in food processing as a clarifying agent in beverages.
Colloidal Silica is used in the leather industry to improve finishing quality.
Colloidal Silica is included in agrochemical formulations to prevent sedimentation.
Colloidal Silica is used in floor polishes for high-gloss and durability.
Colloidal Silica is applied in flame retardant coatings for heat resistance.
Colloidal Silica is used in thermal insulation products for pore structure control.
Colloidal Silica is utilized in air and liquid filtration membranes for porosity enhancement.
Colloidal Silica is used in gel formulations for controlled drug release.
Colloidal Silica is added to lubricants as an anti-wear additive.
Colloidal Silica is used in industrial cleaners to boost abrasive power.
Colloidal Silica is applied in synthetic resin systems for thermal shock resistance.
Colloidal Silica is used in flame-resistant textiles as a finish additive.
Colloidal Silica is used in petroleum refining processes as a catalyst carrier.
Colloidal Silica is included in antifoaming agents for foam stabilization control.
Colloidal Silica is used in surface modification processes for hydrophobic effects.
Colloidal Silica is applied in silicate paints to enhance adhesion and finish.
Colloidal Silica is used in microelectronics for wafer edge polishing.
Colloidal Silica is used in plasma display panel production as a spacer material.
Colloidal Silica is used in pipeline coatings for internal corrosion protection.
Colloidal Silica is used in rheology modifiers for viscosity adjustment.
Colloidal Silica is added to shampoo formulations for better clarity and stability.
Colloidal Silica is used in metal cleaning solutions for enhanced scrubbing action.
Colloidal Silica is applied in inkjet coatings for pigment fixation.
Colloidal Silica is used in LED packaging for improved heat dissipation.
Colloidal Silica is used in pressure-sensitive adhesives for tack modification.
Colloidal Silica is used in the manufacturing of lithium-ion batteries for separator coatings.
Colloidal Silica is included in soil stabilization for construction applications.
DESCRIPTION
Colloidal Silica appears as a clear to opalescent liquid with no distinct odor.
Colloidal Silica consists of nanoscale silica particles suspended in a liquid, usually water.
The particles are typically spherical and range from 5 nm to 100 nm in diameter.
Colloidal Silica is electrically stabilized to prevent particle aggregation and sedimentation.
Colloidal Silica exhibits high surface area and low particle size, ideal for dispersion applications.
Colloidal Silica is non-toxic, non-flammable, and chemically inert under standard conditions.
Colloidal Silica consists of nano-sized amorphous silica particles suspended in water.
Colloidal Silica is a stable dispersion with low sedimentation and long shelf life.
Colloidal Silica has high surface area and forms hydrogen bonds with other materials.
Colloidal Silica is transparent to translucent, depending on particle size.
Colloidal Silica is non-toxic and non-flammable, making it safe for many applications.
Colloidal Silica is pH-adjustable, allowing compatibility with acidic or basic systems.
Colloidal Silica is odorless and chemically inert under most conditions.
Colloidal Silica can be concentrated or diluted based on end-use requirements.
Colloidal Silica exhibits thixotropic behavior, especially in gel systems.
Colloidal Silica enhances mechanical properties, thermal resistance, and surface characteristics in various formulations.
Colloidal Silica is compatible with a wide range of materials including polymers, metals, and ceramics.
Colloidal Silica is biodegradable and environmentally friendly in most applications.
Colloidal Silica has excellent thermal stability and does not decompose under normal processing conditions.
Colloidal Silica enhances mechanical strength, thermal resistance, and barrier properties in composites.
Colloidal Silica remains stable under a broad pH range, depending on its formulation and ionic content.
PROPERTIES
Chemical Formula: SiO₂
Molecular Weight: 60.08 g/mol
Common Name: Colloidal Silica
Appearance: Clear to opalescent liquid
Odor: Odorless
Particle Size: 5–100 nm (average)
pH: Typically 9–10 (alkaline sols), 3–5 (acidic sols)
Density: ~1.2 g/cm³ (depends on concentration)
Boiling Point: ~100°C (for aqueous dispersions)
Solubility: Insoluble in water but stably dispersed
Surface Area: 50–500 m²/g
Stability: Stable under normal handling conditions
Storage Conditions: Store in tightly sealed containers at 5–30°C
Flash Point: Non-flammable
Viscosity: Low to moderate (depending on formulation)
FIRST AID
Inhalation:
Move to fresh air if aerosol inhalation occurs.
Seek medical attention if respiratory symptoms develop.
Skin Contact:
Wash skin thoroughly with soap and water.
Seek medical attention if irritation or rash occurs.
Eye Contact:
Flush eyes with water for several minutes.
Remove contact lenses and continue rinsing.
Seek medical help if symptoms persist.
Ingestion:
Rinse mouth with water.
Seek medical attention in case of persistent discomfort.
Note to Physicians:
Treat symptomatically.
No specific antidote is required.
HANDLING AND STORAGE
Handling:
Wear appropriate PPE including gloves and goggles.
Use in a well-ventilated area to avoid inhalation of aerosols.
Avoid direct contact with skin and eyes.
Do not eat, drink, or smoke during use.
Spills:
Use absorbent materials to contain the spill.
Clean up with water and dispose of waste properly.
Storage:
Store in a cool, dry, and well-ventilated area.
Keep containers tightly closed when not in use.
Protect from freezing and excessive heat.
Avoid contamination with incompatible substances.
