precipitated silica

precipitated silica Specification

Soluble
Insoluble in water

Appearance
White amorphous powder

Uses
Reinforcing agent, Thickener, Anti-caking agent, Carrier for liquids

Purity
98% Min

Packaging Type
HDPE Bag / Paper Bag

Molar Mass
60.08 g/mol

Density
2.1 Gram per cubic centimeter(g/cm3)

Physical State
Solid

Melting Point
1710C

Molecular Formula
SiO

Product Type
Precipitated Silica

Material
Silicon Dioxide

Type
Precipitated

Application
Industrial, Rubber, Tyre, Paints, Pharmaceuticals, Cosmetics, Detergent

Shape
Powder

Size
Fine

Oil Absorption
180260 ml/100g

CAS Number
7631-86-9

Storage Conditions
Store in a dry, cool place, tightly closed

Shelf Life
2 Years

Particle Size
Ultrafine (520 m)

pH Value (5% Suspension)
6.57.5

Ignition Loss
Less than 6%

Loss on Drying
Max. 5% at 105C

Bulk Density
0.300.50 g/cm

Specific Surface Area
130180 m/g

Refractive Index
1.46

precipitated silica Trade Information

Minimum Order Quantity
25 Tons

Payment Terms
Cash on Delivery (COD), Cash Advance (CA)

Main Domestic Market
All India

About precipitated silica

Precipitated silica is a versatile form of silica known for its wide range of applications across various industries Heres a structured content outline that covers its characteristics uses production process and environmental considerations

Introduction to Precipitated Silica

Precipitated silica also known as silica dioxide is a synthetic form of silica produced through a chemical process It is valued for its unique properties and finds application in diverse industries due to its versatility and performanceenhancing capabilities

Characteristics

Particle Size and Structure Precipitated silica consists of fine particles with a highly porous structure which contributes to its high surface area and absorptive properties

Chemical Composition Chemically it is composed of silicon dioxide SiO2 with properties that can be tailored during manufacturing to meet specific application requirements

Production Process

Precipitation Method The production of precipitated silica involves the precipitation of soluble silicates from a solution with an acid This process results in the formation of a silica gel which is then further processed to obtain the desired particle size and characteristics

Surface Modification Surface treatment of precipitated silica may include modifications to enhance properties such as dispersibility hydrophobicity or compatibility with various matrices

Applications

Rubber Industry Precipitated silica is extensively used as a reinforcing filler in tires and industrial rubber products It improves abrasion resistance tear strength and reduces rolling resistance in tires

Plastics and Polymers It serves as a reinforcing agent and antiblocking agent in plastics improving mechanical properties scratch resistance and surface finish

Food and Personal Care In the food industry precipitated silica is used as an anticaking agent and viscosity modifier In personal care products it enhances texture absorbency and acts as a thickening agent in formulations

Coatings and Paints It functions as a matting agent anticorrosive additive and improves scratch resistance in coatings and paints

Environmental Considerations

Resource Efficiency Precipitated silica production can utilize silica byproducts and waste materials contributing to resource efficiency and waste reduction

Recyclability Products containing precipitated silica can be designed for recyclability minimizing environmental impact during disposal

Conclusion

Precipitated silica is a multifunctional material with applications spanning industries such as rubber plastics food personal care and coatings Its unique properties production process and environmental benefits make it a valuable ingredient in enhancing product performance and sustainability across diverse sectors

This structured content provides a comprehensive overview of precipitated silica covering its characteristics production process applications across various industries and environmental considerations It aims to inform readers about the importance and versatility of this synthetic silica form in modern industrial applications

Key Characteristics of Precipitated Silica

This precipitated silica offers ultrafine white powder with exceptional purity (98% minimum) and a tightly controlled bulk density of 0.30-0.50 g/cm3. The material displays a neutral pH (6.5-7.5 in 5% suspension) and a high specific surface area, enhancing its effectiveness in a wide range of industrial applications. Its excellent oil absorption and low loss on drying provide added value in processing.

Applications Across Industries

Precipitated silica is utilized as a reinforcing agent in rubber and tyre manufacturing, a thickener in paints and cosmetics, an anti-caking agent in powdered products, and as an efficient carrier for liquids in pharmaceutical and detergent formulations. Its amorphous, ultrafine structure ensures compatibility and performance across various end uses.

Safe Storage & Long Shelf Life

To maintain its quality, store precipitated silica in a cool, dry place in tightly sealed HDPE or paper bags. Under proper storage conditions, the product retains its properties for up to two years, making it a reliable choice for bulk users and distributors.

FAQ's of precipitated silica:

Q: How is precipitated silica typically used in industrial applications?

A: Precipitated silica serves multiple roles such as a reinforcing agent in rubber and tyres, a thickener in paints and cosmetics, an anti-caking agent in food and detergent powders, and as a carrier for liquids in pharmaceuticals due to its high surface area and fine particle size.

Q: What are the storage requirements for precipitated silica to ensure its shelf life?

A: Store the product in a cool, dry environment with the packaging tightly closed. Using HDPE or paper bags further protects it from moisture and contamination, ensuring its effectiveness for up to two years.

Q: When should precipitated silica be incorporated into manufacturing processes?

A: It is best to add precipitated silica during the mixing or blending stage of your manufacturing process to ensure even dispersion, maximizing its reinforcing or thickening properties depending on your application.

Q: Where can precipitated silica manufactured in India be sourced from?

A: Precipitated silica is available from reputed manufacturers, suppliers, and traders across India. It is commonly supplied in HDPE or paper bags for industrial usage.

Q: What benefits does the fine particle size and high surface area of precipitated silica offer?

A: The ultrafine particle size (5-20 m) and large specific surface area (130-180 m2/g) allow precipitated silica to provide superior reinforcement, improved flow properties, enhanced thickening, and more effective absorption in multiple applications.

Q: How does the loss on drying and ignition loss impact product performance?

A: With a maximum loss on drying of 5% and ignition loss below 6%, precipitated silica maintains stability and purity during processing, minimizing unwanted effects on final product properties.