SILICON DIOXIDE

Silicon dioxide is an inorganic compound widely used as an anti-caking agent, flow aid, carrier, thickener, and stabilizer in food, pharmaceutical, cosmetic, and industrial formulations.
Silicon dioxide provides excellent moisture control, powder flow improvement, and structural reinforcement in a variety of applications.
Silicon dioxide is valued for its chemical stability, biocompatibility, high surface area, and strong adsorption capabilities.
Silicon dioxide is available in several forms including amorphous, fumed, precipitated, and colloidal grades, each suitable for different performance requirements.

CAS Number: 7631-86-9
EC Number: 231-545-4
Molecular Formula: SiO₂
Molecular Weight: 60.08 g/mol

Synonyms: Silicon Dioxide, Silica, Amorphous Silica, Colloidal Silica, Fumed Silica, Precipitated Silica, Synthetic Silica, SiO₂ Powder, Silica Anti-Caking Agent, Silicon Oxide, Silicon Dioxide, Silica, SiO₂, Amorphous Silica, Crystalline Silica, Fused Silica, Colloidal Silica, Precipitated Silica, Hydrated Silica, Synthetic Amorphous Silica, Silica Powder, Silica Micro Powder, Silica Fine Powder, Silica Granules, Silica Crystals, High Purity Silica, Pure Silica, Extra Pure Silica, Food Grade Silicon Dioxide, Pharmaceutical Grade Silicon Dioxide, Technical Grade Silicon Dioxide, Industrial Grade Silicon Dioxide, Silicon Dioxide FCC, Silicon Dioxide USP, Silicon Dioxide EP, Quartz (natural form), Sand (silica component), Silica Gel, Fumed Silica, Pyrogenic Silica, Silica Aerogel, Silica Xerogel, Diatomaceous Earth (silica-rich), Kieselguhr, Siliceous Earth, Silica Mineral, Silicon Oxide, Silicon(IV) Oxide, Silicon Oxide Powder, Silicon Dioxide Additive, Silicon Dioxide Anti-Caking Agent, Silica Anti-Caking Agent E551, E551 Silica, Silica Thickener, Silica Flow Agent, Silica Free-Flow Agent, Silica Filler, Silica Reinforcing Agent, Silica Rubber Filler, Silica Polymer Filler, Silica Plastic Filler, Silica Coating Additive, Silica Paint Additive, Silica Cosmetics Ingredient, Silica Skincare Ingredient, Silica Haircare Ingredient, Silica Oral Care Abrasive, Silica Toothpaste Abrasive, Silica Drying Agent, Silica Desiccant, Silica Adsorbent, Silica Catalyst Support, Silica Chromatography Grade, Silica Laboratory Reagent, Silica Technical Chemical, Silica Specialty Chemical, Silicon Dioxide Raw Material, Silicon Dioxide Industrial Product, Silicon Dioxide Technical Product, Siliceous Powder, Mineral Silica, Silicic Oxide

APPLICATIONS

Silicon dioxide is used as an anti-caking agent in food products.
Silicon dioxide prevents clumping in powdered spices, salts, and mixes.
Silicon dioxide improves flowability in packaged foods.

Silicon dioxide is incorporated in pharmaceutical tablets.
Silicon dioxide enhances powder flow during compression.
Silicon dioxide acts as a glidant and improves tablet uniformity.

Silicon dioxide is used in dietary supplements.
Silicon dioxide improves filling and blending performance.
Silicon dioxide stabilizes moisture-sensitive ingredients.

Silicon dioxide is applied in cosmetics and personal care products.
Silicon dioxide provides oil absorption and matte finish.
Silicon dioxide enhances texture in creams and powders.

Silicon dioxide is used in paints and coatings.
Silicon dioxide improves film hardness and abrasion resistance.
Silicon dioxide enhances suspension stability in formulations.

Silicon dioxide is used in rubber and plastics.
Silicon dioxide reinforces mechanical strength.
Silicon dioxide improves abrasion and tear resistance.

Silicon dioxide is employed in adhesives and sealants.
Silicon dioxide controls rheology and thickening behavior.
Silicon dioxide enhances bonding strength and stability.

Silicon dioxide is used in electronics manufacturing.
Silicon dioxide acts as an insulator and dielectric material.
Silicon dioxide supports semiconductor processing steps.

Silicon dioxide is included in agrochemical formulations.
Silicon dioxide improves flowability and dispersion.
Silicon dioxide stabilizes active ingredients in powders.

Silicon dioxide is used in chromatography and filtration.
Silicon dioxide provides controlled adsorption and separation.
Silicon dioxide supports purification processes.

Silicon Dioxide is used as an anti-caking agent in powdered foods.
Silicon Dioxide prevents clumping in salt, spices, and powdered beverages.
Silicon Dioxide improves flowability in dry food mixes.

Silicon Dioxide is used as a glidant in pharmaceuticals.
Silicon Dioxide enhances powder flow during tablet manufacturing.
Silicon Dioxide improves uniformity of active ingredient distribution.

Silicon Dioxide is used as a tablet disintegrant.
Silicon Dioxide supports rapid breakdown of tablets after ingestion.
Silicon Dioxide enhances dissolution of active pharmaceutical ingredients.

Silicon Dioxide is used in cosmetic formulations.
Silicon Dioxide provides oil absorption in face powders.
Silicon Dioxide enhances soft-focus effects in makeup products.

Silicon Dioxide is used in toothpaste.
Silicon Dioxide functions as a mild abrasive.
Silicon Dioxide helps remove plaque while protecting enamel.

Silicon Dioxide is used in rubber reinforcement.
Silicon Dioxide increases tensile strength of silicone and rubber products.
Silicon Dioxide improves durability in high-performance elastomers.

Silicon Dioxide is used in paints and coatings.
Silicon Dioxide enhances scratch resistance in protective coatings.
Silicon Dioxide improves matting effects in paint formulations.

Silicon Dioxide is used in plastics and polymers.
Silicon Dioxide increases rigidity and heat resistance in engineered plastics.
Silicon Dioxide supports dispersion of pigments and fillers.

Silicon Dioxide is used in the production of glass.
Silicon Dioxide serves as the primary raw material in glassmaking.
Silicon Dioxide contributes to strength and transparency of glass products.

Silicon Dioxide is used in ceramics.
Silicon Dioxide improves thermal resistance of ceramic components.
Silicon Dioxide supports structural integrity during firing.

Silicon Dioxide is used in foundry molds.
Silicon Dioxide provides heat-resistant sand for metal casting.
Silicon Dioxide ensures precise mold definition in cast metal parts.

Silicon Dioxide is used in catalyst supports.
Silicon Dioxide provides high surface area for catalytic reactions.
Silicon Dioxide improves dispersion of catalytic metals.

Silicon Dioxide is used in chromatography.
Silicon Dioxide serves as a stationary phase in column chromatography.
Silicon Dioxide enables separation of organic compounds.

Silicon Dioxide is used in electronics.
Silicon Dioxide acts as an insulating layer in semiconductor devices.
Silicon Dioxide provides dielectric strength in integrated circuits.

Silicon Dioxide is used in fiber optics.
Silicon Dioxide forms the core of optical fiber cables.
Silicon Dioxide enables high-speed signal transmission with minimal loss.

Silicon Dioxide is used in construction materials.
Silicon Dioxide enhances strength and stability in cement and concrete.
Silicon Dioxide improves durability in structural applications.

DESCRIPTION

Silicon dioxide is a white, free-flowing powder in its amorphous form.
Silicon dioxide is odorless and chemically inert under normal conditions.
Silicon dioxide exists with high purity and uniform particle size distribution.

Silicon dioxide has a high surface area, allowing excellent adsorption properties.
Silicon dioxide can bind moisture and oils effectively.
Silicon dioxide supports stabilization of hygroscopic materials.

Silicon dioxide is thermally stable over a wide temperature range.
Silicon dioxide resists degradation under typical storage conditions.
Silicon dioxide remains structurally stable in acidic and basic environments.

Silicon dioxide is available in fumed, precipitated, and colloidal grades.
Silicon dioxide grades differ in surface area, porosity, and thickening performance.
Silicon dioxide can be tailored for specific industrial applications.

Silicon dioxide is non-reactive and compatible with most ingredients.
Silicon dioxide integrates easily into powder, liquid, and semi-solid systems.
Silicon dioxide provides consistent performance in complex formulations.

Silicon Dioxide is an inorganic compound composed of silicon and oxygen.
Silicon Dioxide occurs naturally as quartz and is one of Earth’s most abundant minerals.

Silicon Dioxide is widely used across industries due to its chemical stability and versatility.
Silicon Dioxide appears as a white, odorless, tasteless powder.

Silicon Dioxide is insoluble in water and most solvents.
Silicon Dioxide has high thermal and chemical stability.

Silicon Dioxide has a high melting point exceeding 1,600°C.
Silicon Dioxide exhibits excellent dielectric properties.
Silicon Dioxide is classified as generally recognized as safe (GRAS) for food applications.

Silicon Dioxide should be stored in dry, well-ventilated conditions.
Silicon Dioxide may generate dust during handling and requires proper precautions.
Silicon Dioxide is widely valued for its multifunctional role in food, pharmaceutical, industrial, and technological applications.

PROPERTIES

Chemical Formula: SiO₂
Molecular Weight: 60.08 g/mol
Appearance: White, odorless powder
Solubility: Insoluble in water; slightly soluble in strong alkalis
Density: Approximately 2.2 g/cm³ (amorphous)
Melting Point: ~1710°C
Boiling Point: ~2230°C
pH: Neutral to slightly acidic (depending on grade)
Surface Area: High, grade-dependent
Function: Anti-caking agent, glidant, thickener, filler, adsorbent

FIRST AID

Inhalation:
Move to fresh air if dust is inhaled.
Seek medical attention if respiratory irritation persists.

Skin Contact:
Wash with soap and water.
Seek medical care if irritation develops.

Eye Contact:
Rinse thoroughly with clean water for several minutes.
Seek medical attention if irritation continues.

Ingestion:
Rinse mouth with water.
Low toxicity, but seek medical advice if discomfort occurs.

Note to Physicians:
Treat symptomatically; material is chemically inert.

HANDLING AND STORAGE

Handling:
Wear protective gloves, goggles, and dust masks.
Avoid inhalation of fine silica dust.
Ensure adequate ventilation in processing areas.

Avoidance:
Avoid generating airborne particulate matter.
Prevent contamination with moisture-sensitive components.

Spill Procedures:
Sweep or vacuum gently to avoid dust formation.
Dispose of material according to regulations.

Storage:
Store in a cool, dry, well-ventilated place.
Keep container tightly closed.
Protect from moisture and contamination.