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Clacined Clay Calcined Kaolin

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Clacined Clay Calcined Kaolin Specification

Structural Formula
Al2O32SiO2

Storage
Dry, well-ventilated place

Molecular Formula
Al2Si2O5(OH)4 (before calcining); after calcining Al2Si2O7

Poisonous
No

Solubility
Insoluble in water, partially soluble in acids and alkalis

Refractive Rate
1.56 - 1.58

Taste
Odourless, Tasteless

Form
Solid

Purity
Up to 99.5%

Molecular Weight
258.16 g/mol

Melting Point
About 1750C

HS Code
2507

Density
2.63 Gram per cubic centimeter(g/cm3)

Shape
Powder or Granular Lump

Other Names
Calcined Clay, China Clay

Ph Level
5.0 - 6.5 (10% slurry)

Boiling point
Not applicable; Sublimates at high temperature

Smell
Odourless

Classification
Hydrated Aluminium Silicate

Chemical Name
Calcined Kaolin (Aluminium Silicate)

CAS No
1332-58-7

EINECS No
310-194-1

Grade
Lump/Powder (Technical, Industrial, Ceramic and Paper grades available)

Standard
IS: 1463:2003

Type
Industrial Mineral

Usage
Filler, Coating agent, Opacifier, Whitening agent

Main Material
Calcined Kaolin

Application
Other

Non Toxic
No

Whiteness
Near to white

Particle Size
D50 less than 2 microns (for powder grade)

Moisture Content
<0.5%

Brightness
88 - 94% ISO

Loss on Ignition (LOI)
<1.5% at 1000C

Bulk Density
0.4 - 0.6 g/cm3 (loose)

Oil Absorption
30 - 38 g/100g

Hardness (Mohs)
2 - 2.5

About Clacined Clay Calcined Kaolin

High-Performance Functional Mineral

Why Choose Calcined Clay?

Eco-friendly cement replacement (SCM)
Enhances strength & durability
Improves opacity & brightness (Paints)
Excellent rheology & bonding (Adhesives)
Cost-effective performance enhancer

Key Applications:

Construction & Concrete (LC³, Green Cement)
Paints, Coatings & Inks
Rubber, Plastics & Polymers
Adhesives, Sealants & Construction Chemicals
Ceramics & Refractories
Paper & Packaging
Agriculture & Environmental Solutions

Key Advantages:

High Whiteness (85-95%)
Controlled Particle Size
Low Moisture Content
High Pozzolanic Reactivity
Chemically Stable

Partner with ASTRRA CHEMICALS LLP

For sustainable & high-performance solutions

Innovating Sustainable Mineral Solutions

Superior Brightness and Whiteness

This calcined kaolin offers a remarkable brightness rating of 88-94% ISO, making it ideal for applications where high opacity and aesthetic appeal are essential. Its near-white shade enhances products across paper, plastic, paint, and ceramic industries, improving their visual quality significantly.

Exceptional Fine Particle Size

With a D50 particle size less than 2 microns for the powder grade, this product ensures a smooth finish and optimal dispersion in end-use formulations. The fine particle sizing is crucial in applications like coatings and ceramics to achieve desired surface properties.

Versatile Industrial Applications

Calcined Clay is trusted across various sectors-including paper, paints, rubber, plastics, ceramics, fiberglass, agriculture, and cement-as a filler, coating, opacifier, and whitening agent. Its chemical stability and inertness make it a preferred choice for solutions demanding purity and consistency.

FAQ's of Clacined Clay Calcined Kaolin LLP:

Q: How is Calcined Clay (Calcined Kaolin) typically used in industry?

A: Calcined Kaolin is primarily utilized as a filler, coating agent, opacifier, and whitening agent in industries such as paper, paints, plastics, rubber, ceramics, fiber-glass, agriculture, and cement. Its fine particle size and high brightness enhance product performance and appearance.

Q: What benefits does using Calcined Kaolin provide to manufacturers?

A: Manufacturers benefit from Calcined Kaolin's high purity, brightness, and chemical stability. Its low oil absorption and exceptional whiteness improve the opacity, brightness, and workability of final products-resulting in higher quality and increased value across multiple industrial applications.

Q: Where should Calcined Kaolin be stored to maintain quality?

A: Calcined Kaolin should be stored in a dry, well-ventilated environment to prevent moisture absorption and maintain its loose bulk density. Proper storage is essential to retain the product's physical and chemical properties.

Q: What is the typical process for producing Calcined Kaolin?

A: Calcined Kaolin is produced by heating natural kaolin clay at high temperatures (up to 1000C) to remove moisture and impurities, resulting in enhanced brightness, increased whiteness, and improved mechanical properties for industrial use.

Q: When is it suitable to use lump versus powder grade Calcined Kaolin?

A: Lump grades are typically preferred for bulk manufacturing processes where further size reduction is needed, while powder grades, with particle size D50 less than 2 microns, are suitable for direct use in fine applications such as paints, coatings, and high-grade ceramics.

Q: Is Calcined Kaolin hazardous to handle or use?

A: No, Calcined Kaolin from this supplier is non-toxic, odourless, tasteless, and classified as non-poisonous, making it safe for handling in standard industrial settings. It also conforms to IS: 1463:2003 safety standards.

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