What Is Silica?

What Is Silica and What Is It Used For?

Silica, or silicon dioxide (SiO₂), is one of the most abundant mineral compounds in the Earth’s crust and an important raw material for many industries. It occurs naturally as quartz, silica sand, quartzite and other mineral rocks. After extraction, it is crushed, washed, purified, graded or micronized for industrial use.

Alvand Giti Hegmataneh supplies industrial silica in multiple particle sizes and mesh grades for glass, foundry, water treatment, ceramics, paints, resins, construction materials and other industries.

Silica Chemistry and Key Characteristics

Main Composition

When purchasing industrial silica, assess SiO₂ content, iron oxide, alumina, moisture, color, particle size and grading consistency.

High purity alone is not sufficient; particle-size distribution, grain shape and product uniformity must also match the production process.

Key Purchasing Criteria

✓ Required SiO₂ purity
✓ Iron oxide and other impurity levels
✓ Particle size and uniformity
✓ Color and brightness
✓ Moisture content
✓ Granulated or powder form
✓ Consistent analysis across shipments
✓ Packaging and transport conditions

Types of Industrial Silica

Industrial silica is supplied in different grades based on processing method, purity, particle size and end use.

◆ Graded silica, 0.2–0.8 mm
◆ Graded silica, 1–2 mm
◆ Graded silica, 2–3 mm
◆ Graded silica, 1–3 mm
◆ Micronized silica powder, 230 mesh
Understanding silica specifications helps industrial buyers select a product suited to their production line.

Granulated silica is used in water treatment, foundry, flooring and construction, while micronized powder is used in paints, resins, adhesives, ceramics and glazes.

Silica in Glass and Crystal Manufacturing

Glass manufacturing is one of silica’s principal applications. Silica quality influences transparency, color, melting behaviour and final-product consistency.

Iron content must be controlled in transparent glass and crystal because iron compounds can affect product color.

A precise specification must consider silica purity, particle size and the intended industrial application together.

These industries usually require high-purity silica with uniform grading and controlled impurities.

Understanding silica specifications helps industrial buyers select a product suited to their production line.

Alvand Giti Hegmataneh can supply silica for the glass industry. Before final ordering, buyers should review the analysis report and confirm compatibility with the factory formulation.

The key purchasing step is selecting the purity and particle size appropriate for the application.

Reviewing silica properties and its analysis report prevents selection of an unsuitable grade.

Silica in Foundry Applications

Silica sand is used for foundry moulds and cores because of its suitable heat resistance and availability.

Foundry silica selection should consider particle size, grain distribution, shape, fines, impurities and thermal resistance.

Applications of Silica in Water Treatment

Graded silica is used in sand filters, swimming pools, treatment plants and industrial water-treatment systems. As water passes through silica layers, suspended particles and turbidity are reduced.

Sand-filter performance depends on suitable grading, product purity, correct layering and system design. Irregular grading or excessive clay and fines can cause pressure loss, clogging and reduced efficiency.

Silica in Tiles, Ceramics and Glazes

Silica helps control thermal behaviour, strength, shrinkage and surface quality in tiles, ceramics and glazes.

Silica mesh and purity must match the body or glaze formulation, firing temperature and final-product requirements.

Silica in Paints, Resins and Industrial Coatings

Silica powder is used as a mineral filler in paints, resins, adhesives, flooring and coatings, influencing texture, abrasion resistance and hardness.

For these applications, appropriate mesh and consistent quality are essential. Changes in particle size or impurities can affect mixing, application and drying behaviour.

Silica in Concrete and Construction Materials

Silica is used in mortars, flooring, grouts, concrete products, artificial stone and construction compounds.

Graded silica can form part of a product’s mineral structure, while silica powder can serve as a filler. Mesh, grading and purity must match the production formula.

How to Select the Right Silica

Industrial silica should be selected according to the application and production-line requirements, not price alone.

Before purchasing, define the following requirements:

✓ Target industry and application
✓ Required purity
✓ Maximum acceptable iron content
✓ Required particle size or mesh
✓ Monthly consumption
✓ Packaging type
✓ Delivery location
✓ Sample and analysis requirements
✓ Production-line sensitivity to specification changes

Quality consistency is crucial for bulk orders. Sudden changes in purity, moisture or particle size can alter final-product quality, increase waste or disrupt production.

Benefits of Buying Silica from Alvand Giti Hegmataneh

Alvand Giti Hegmataneh produces and supplies industrial minerals and offers silica in various particle sizes and specifications.

Key advantages of working with our company include:

✓ Granulated and micronized silica supply
✓ Bulk industrial order capability
✓ Multiple particle-size ranges
✓ Product analysis available for supplied grades
✓ Delivery across Iran
✓ Guidance on selecting the appropriate silica grade
✓ Packaging matched to order volume
✓ Focus on consistent quality and continuous supply

How Is Silica Priced?

Silica price depends on purity, iron content, grading, mesh, processing method, order quantity, packaging, transport cost and delivery location.

Buying a cheaper product without checking quality can create hidden production costs, including lower efficiency, more waste, colour changes, melting problems and reduced final-product quality.

For an accurate quotation, provide the following information:

◆ Application
◆ Particle size or mesh
◆ Required purity
◆ Order quantity
◆ Packaging Type
◆ City or delivery location

Buying and Ordering Industrial Silica

For industrial silica purchases, analysis reports, grading review and current pricing, contact our sales specialists.

Office: 08133351605
Mobile and WhatsApp: 09183052513

Head Office: Hamedan Province, Malayer, Shohada Street, next to Tejarat Bank, Salehin Building, Unit 6

Factory: Malayer Industrial Estate 1, Sanat Square, Sixth Street

Authoritative Silica Resources

For official information on industrial silica statistics, properties and applications, see the following resources:

U.S. Geological Survey — Silica Statistics and Information:
https://www.usgs.gov/centers/national-minerals-information-center/silica-statistics-and-information

PubChem — Scientific Information on Silicon Dioxide:
https://pubchem.ncbi.nlm.nih.gov/compound/Silicon-dioxide

Frequently Asked Questions About Silica

What Is Silica?

Silica is a mineral compound with the chemical formula SiO₂. It is used in glass, foundry, water treatment, tile, ceramics, paint, resin and construction-material industries.

What particle sizes of silica are available?

Alvand Giti Hegmataneh supplies silica in 0.2–0.8, 1–2, 2–3 and 1–3 mm grades, as well as 230-mesh powder.

The correct grade depends on the factory formula and product, but high purity, low iron and uniform grading are generally essential.

The correct grade depends on the factory formula and product, but high purity, low iron and uniform grading are generally essential.

Is a silica analysis report available?

Yes. Analysis reports and technical specifications can be provided according to the available product grade.

How is silica price calculated?

Pricing depends on purity, particle size, order volume, packaging, delivery location and market conditions.

Can silica be shipped throughout Iran?

Yes. Bulk orders are shipped from Malayer to cities and provinces throughout Iran.

Explore Other Alvand Giti Products

https://alvandgiti.com/en/?s=calcium+carbonate
https://alvandgiti.com/en/?s=calcium+carbonate

Dolomite:
https://alvandgiti.com/en/?s=dolomite

Sodium Feldspar:
https://alvandgiti.com/en/?s=feldspar

Silica Products:
https://alvandgiti.com/en/?s=silica

Contact Alvand Giti Hegmataneh for analysis reports, current pricing and bulk-purchase guidance.