Versatile Silicon Dioxide solutions for construction, glass, ceramics, rubber, tyres, plastics, food processing, and advanced industrial applications.
EC Number
231-545-4 / 238-878-4 / 262-373-8
Molecular Weight
60.08 g/mol
Purity
Solid: 65% - 99.99% (upto 5N)
Liquid: 20% - 50%
Packaging
25 / 50 / 500 / 1000 / 1500 kg bags
200-1000 ltr IBC
MOQ
1 T.E.U. (FCL)
Customization (incl. but not limited to)
for Grades / Forms / Specifications / Properties / Packaging available on request
Common Names
Silica / Quartz /
Cristobalite / Tripoli /
Precipitated / Pyrogenic /
Fumed / Micronized / Diatomaceous
Appearance ; Odor
Colorless / White Crystals ;
Odorless
Forms
Powder/Granular
Industrial Category ; Chemical Class
Anti-Caking Agent / Desiccant /
Pharmaceutical Excipient / Filler / Food Additive ;
Inorganic Oxide / Metal Oxide
IUPAC Name
Silicon Dioxide
Silicon dioxide (SiO₂) is a versatile inorganic material supplied across a broad spectrum of forms, ranging from naturally occurring crystalline minerals to highly engineered amorphous and ultra-high purity variants. These materials are available in multiple particle sizes and physical formats — including granular, micronized, colloidal dispersions, and ultrafine powders — designed to meet the performance requirements of diverse industrial processes. With controlled purity levels, surface characteristics, and structural properties, these products support applications that demand consistency, durability, and precise functional behavior across sectors such as glass manufacturing, ceramics, construction, coatings, polymers, and advanced composites.
In addition to conventional industrial uses, advanced and high-purity forms are engineered for specialized applications requiring exceptional chemical stability, optical clarity, and controlled reactivity. These materials play a critical role in high-performance systems including electronics, energy technologies, precision polishing, filtration, and environmental solutions. Their adaptability, abundance, and compatibility with modern processing technologies make them an essential component in both large-scale industrial operations and high-value specialty applications, supporting efficiency, sustainability, and product innovation across global supply chains.
Our silicon dioxide (SiO₂) grades meet stringent industrial and specialty requirements, ensuring consistent purity, particle size distribution, and performance across diverse applications.
| Grade | SiO₂ (%) | Key Impurities | Form | Applications |
|---|---|---|---|---|
| Industrial Sand | 95 – 99.5% |
Fe₂O₃: 0.02–0.15% Al₂O₃: 0.1–0.5% CaO/MgO: 0.05–0.3% |
Granular / Sand |
Glass manufacturing (float, container, fiberglass) Foundry molds & cores Construction (concrete, mortars, flooring) Water filtration media |
| Quartz Powder | 98 – 99.9% |
Fe₂O₃: 0.01–0.05% Al₂O₃: 0.05–0.2% TiO₂: <0.02% |
Fine Powder |
Ceramic bodies & glazes Paints, coatings & fillers Engineered stone & tiles Adhesives & sealants |
| Cristobalite | ≥ 99% |
Fe₂O₃: <0.05% Al₂O₃: <0.1% CaO: <0.05% |
Calcined Powder |
Engineered stone countertops High-performance coatings Polymer composites Thermal shock-resistant ceramics |
| Foundry Grade | 98 – 99.5% |
Fe₂O₃: 0.02–0.1% Clay: <0.5% Moisture: <0.2% |
Graded Sand |
Metal casting molds & cores Iron, steel & non-ferrous casting Shell molding & investment casting |
| Glassmaking Grade | 99 – 99.8% |
Fe₂O₃: 0.01–0.04% Al₂O₃: <0.2% TiO₂: <0.02% |
Washed Sand |
Float glass & sheet glass Solar glass panels Container glass (bottles, jars) Optical & specialty glass |
| Precipitated Silica | ≥ 98% |
Na₂O: 0.5–2.0% SO₄²⁻: <1.5% Moisture: 4–8% |
Fine White Powder |
Tire & rubber reinforcement Toothpaste (abrasive & thickener) Footwear & industrial rubber goods Agrochemicals (carrier) |
| Fumed Silica | ≥ 99.8% |
HCl: <0.05% Carbon: <0.1% Metals: ppm level |
Ultra-fine Powder |
Paints, inks & coatings (rheology control) Adhesives & sealants Silicone rubber & elastomers Anti-settling / anti-caking agent |
| Colloidal Silica | 20 – 50% (dispersion) |
Na₂O: 0.1–0.5% pH: 8–10 Trace metals: ppm |
Liquid Dispersion |
Precision polishing (CMP) Investment casting binders Paper & textile finishing Catalysts & coatings |
| Silica Gel | ≥ 98% |
Na₂O: 0.2–0.5% Moisture: <5% Trace salts |
Beads / Granules |
Moisture control & desiccants Packaging & electronics protection Air drying systems Gas & liquid adsorption |
| Micronized Silica | ≥ 99% |
Fe₂O₃: <0.05% Al₂O₃: <0.2% Others: <0.1% |
Ultra-fine Powder |
High-performance coatings Plastics & masterbatches Sealants & adhesives Printing inks |
| High Purity Silica | ≥ 99.99% |
Fe: <10 ppm Na: <10 ppm Total impurities: <50 ppm |
Powder / Granules |
Semiconductor wafers Solar PV cells Quartz crucibles Advanced electronics |
| Electronic / Optical Grade | ≥ 99.999% |
Metals: <5 ppm Fe: <1 ppm Na: <1 ppm |
Ultra-high purity |
Optical fibers Microelectronics Photonics & lenses High-end glass applications |
| Diatomaceous Earth | 80 – 95% |
Al₂O₃: 2–5% Fe₂O₃: 0.5–2% Organic matter |
Soft Powder |
Filtration (beer, wine, oils) Water purification Absorbents & spill control Insecticides & agriculture |
Our silicon dioxide (SiO₂) grades are tested using ASTM, ISO, and internationally accepted analytical methods to ensure consistent purity, particle size distribution, and performance across industrial, specialty, and high-purity applications.
| Parameter | Method | Specification |
|---|---|---|
| Appearance | Visual Inspection | White powder / granules / beads / clear dispersion |
| SiO₂ Content | ASTM E1621 – X-Ray Fluorescence (XRF) |
Silica Sand: 95 – 99.5% Quartz / Micronized: 98 – 99.9% Precipitated / Gel: ≥ 98% High Purity: ≥ 99.99% Electronic Grade: ≥ 99.999% |
| Iron Oxide (Fe₂O₃) | ASTM E1479 – ICP-OES |
Glass Grade: ≤ 0.04% Industrial Grades: 0.02 – 0.15% High Purity: <10 ppm |
| Loss on Ignition (LOI) | ASTM C25 – Gravimetric Method |
Natural Silica: ≤ 0.5% Precipitated Silica: 4 – 8% Silica Gel: ≤ 5% |
| Particle Size (D50) | ASTM B822 – Laser Diffraction |
Sand: 100 – 2000 µm Quartz Powder: 5 – 100 µm Precipitated Silica: 5 – 50 µm Fumed Silica: 7 – 40 nm Colloidal Silica: 10 – 100 nm |
| Specific Surface Area | ASTM D3663 – BET Method |
Sand / Quartz: 1 – 5 m²/g Precipitated Silica: 50 – 250 m²/g Fumed Silica: 150 – 400 m²/g Silica Gel: 300 – 800 m²/g |
| Bulk Density | ASTM B527 – Tap Density |
Sand: 1.4 – 1.6 g/cm³ Quartz Powder: 0.9 – 1.3 g/cm³ Precipitated Silica: 0.2 – 0.6 g/cm³ Fumed Silica: 0.03 – 0.1 g/cm³ |
| Porosity | ASTM C20 – Apparent Porosity |
Silica Gel: 60 – 80% Precipitated Silica: High porosity Quartz / Sand: Non-porous |
| Whiteness Index | ASTM E313 – Whiteness Measurement | ≥ 85 – 95% (Coatings / Ceramic Grades) |
| Hardness (Mohs) | ASTM C1327 – Scratch Hardness | ~7 (Quartz / Crystalline Silica) |
| Thermal Stability | ASTM C113 – High Temperature Resistance | Up to 1600 – 1700°C (Crystalline Forms) |
| Oil Absorption | ASTM D281 – Oil Absorption |
Precipitated Silica: 150 – 300 g/100g Fumed Silica: 200 – 400 g/100g |
| pH Value | ASTM D4972 – pH of Slurry |
Precipitated Silica: 6.5 – 7.5 Fumed Silica: 3.5 – 4.5 Colloidal Silica: 8 – 10 |
| Property | Silica Sand | Quartz Powder | Precipitated Silica | Fumed Silica | Colloidal Silica | Silica Gel | High Purity Silica | Electronic Grade |
|---|---|---|---|---|---|---|---|---|
| Appearance | White / off-white granules | Fine white powder | White fluffy powder | Ultra-light fluffy powder | Transparent liquid dispersion | Beads / granules | White powder / granules | Ultra-high purity powder |
| SiO₂ Purity (%) | 95 – 99.5% | 98 – 99.9% | ≥ 98% | ≥ 99.8% | 20 – 50% (dispersion) | ≥ 98% | ≥ 99.99% | ≥ 99.999% |
| Particle Size | 0.1 – 2 mm | 5 – 100 µm | 5 – 50 µm | 7 – 40 nm | 10 – 100 nm | 2 – 5 mm | 1 – 50 µm | <10 µm / ultra-fine |
| Surface Area (m²/g) | <1 | 1 – 5 | 50 – 250 | 150 – 400 | 50 – 300 | 300 – 800 | 1 – 10 | 1 – 5 |
| Bulk Density (g/cm³) | 1.4 – 1.6 | 0.9 – 1.3 | 0.2 – 0.6 | 0.03 – 0.1 | Liquid | 0.6 – 0.8 | 1.5 – 1.7 | 1.5 – 1.7 |
| pH | 6 – 8 | 6 – 8 | 6.5 – 7.5 | 3.5 – 4.5 | 8 – 10 | 4 – 7 | Neutral | Neutral |
| Porosity | Non-porous | Low porosity | Highly porous | Non-porous (aggregated) | Colloidal structure | Highly porous | Non-porous | Non-porous |
| Oil Absorption (g/100g) | Low | Low | 150 – 300 | 200 – 400 | Low | High | Low | Low |
| Thermal Stability | High (>1000°C) | High | Moderate | Very High | Moderate | Moderate | Very High | Ultra High |
| Typical Structure | Crystalline | Crystalline | Amorphous | Amorphous | Amorphous | Amorphous | Crystalline | Ultra-pure crystalline |
High-quality silica sand with controlled grain size and excellent chemical stability, widely used across industrial manufacturing and processing applications.
Applications: Construction materials, glass production, water filtration, foundries, and abrasive blasting.
Finely processed quartz powder offering superior whiteness, purity, and particle consistency for precision industrial applications.
Applications: Ceramics, paints, coatings, engineered stone, adhesives, and refractory products.
Thermally processed silica material with low thermal expansion and exceptional dimensional stability for advanced industrial use.
Applications: Precision casting, ceramics, fiberglass, engineered stone, and specialty coatings.
Premium silica material engineered for metal casting operations, delivering high thermal stability and mold integrity.
Applications: Iron casting, steel foundries, non-ferrous metal molding, and core manufacturing.
Ultra-clean silica feedstock designed to support high-transparency and defect-free glass production processes.
Applications: Flat glass, container glass, solar glass, specialty glass, and fiberglass manufacturing.
Synthetic amorphous silica engineered for reinforcement, absorption, and rheology control across multiple industries.
Applications: Tires, rubber compounds, food additives, toothpaste, feed additives, and industrial powders.
Ultra-fine pyrogenic silica with exceptional thickening and reinforcing capabilities for advanced formulations.
Applications: Silicone sealants, adhesives, coatings, inks, batteries, and cosmetic formulations.
Stable silica nanoparticle dispersion designed for precision polishing, binding, and surface treatment applications.
Applications: Semiconductor polishing, investment casting, coatings, catalysts, and paper treatment.
Highly porous silica material engineered for superior moisture absorption and humidity control applications.
Applications: Packaging, pharmaceuticals, electronics protection, air drying, and industrial desiccant systems.
Precision-ground silica with ultra-fine particle distribution for enhanced performance in specialty industrial products.
Applications: Paints, coatings, plastics, sealants, rubber compounds, and composite materials.
Ultra-refined silica with exceptionally low trace impurities for demanding technological and industrial applications.
Applications: Semiconductor manufacturing, solar panels, specialty glass, electronics, and optical components.
Precision-grade silica developed for ultra-clean electronic and optical applications requiring exceptional purity and transparency.
Applications: Fiber optics, semiconductors, optical lenses, display technologies, and electronic substrates.
Naturally occurring silica-rich mineral with high porosity and absorption capacity for filtration and industrial processing.
Applications: Filtration systems, agriculture, insulation materials, absorbents, and industrial fillers.
Silicon dioxide (SiO₂), including crystalline silica (quartz, cristobalite) and amorphous forms (precipitated, fumed, colloidal silica), is widely used across industrial applications. Respirable crystalline silica dust may pose health risks if inhaled over prolonged periods, potentially leading to lung-related conditions. Fine powders and ultrafine silica (fumed / micronized) may also cause eye irritation, skin dryness, and respiratory discomfort. Proper dust control, ventilation systems, and adherence to occupational safety guidelines are essential during handling, processing, and storage.
Safety Data Sheets (SDS) are available upon request, including information on occupational exposure limits (OSHA, ACGIH), safe handling practices, and regulatory compliance.
Silicon dioxide products are supplied in various packaging formats depending on particle size, form (powder, granules, beads, or liquid dispersion), and end-use applications. Packaging systems are designed to ensure moisture protection, product integrity, and safe handling across industrial supply chains.
Flexible packaging and logistics solutions are available to meet diverse industrial and export requirements.
Silicon dioxide plays a vital role in sustainable industrial processes across construction, glass, rubber, filtration, and electronics sectors due to its abundance, recyclability, and durability.
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