PRODUCT
Description
Introduction to Kaolinite
1. Chemical properties and classification
Kaolinite is a type of hydrated aluminosilicate mineral, belonging to the 1:1 layered silicate, and is the main constituent mineral of kaolin. Its theoretical chemical formula is Al ₂ Si ₂ O ₅ (OH) ₄ or written as 2SiO ₂ · Al ₂ O ∝· 2H ₂ O, with a theoretical chemical composition of SiO ₂ 46.54%, Al ₂ O ∝ 39.5%, and H ₂ O 13.96%. The crystal structure is composed of a layer of silicon oxygen tetrahedral sheet and a layer of aluminum oxygen octahedral sheet connected by a common oxygen atom, and the interlayer is bonded by hydrogen bonds, so Kaolinite does not have interlayer expansion.
2. Physical characteristics and morphology
Pure Kaolinite is white or light gray in color, with a fine texture and a Mohs hardness of 1-2.5. Its density is about 2.54-2.60 g/cm ³, and its melting point is about 1785 ° C. Soil like or dense block like aggregates have water absorption when dry and plasticity when wet – wet soil can be molded into various shapes without breaking and can remain unchanged for a long time. The mineral has stable chemical properties, good insulation, fire resistance, and acid resistance.
3. Formation and industry positioning
Kaolinite is one of the most widely distributed clay minerals in nature, mainly formed by weathering or hydrothermal alteration of aluminosilicate minerals such as feldspar and mica under humid and hot climate conditions. Named after Gaoling Village in Jingdezhen, Jiangxi Province, the pure kaolin is also known as “Baiyun soil”. As one of the four major non-metallic minerals, Kaolinite and its constituent kaolin have a wide range of applications in dozens of industrial fields such as ceramics, papermaking, coatings, rubber, refractory materials, etc. It is one of the important indicators to measure the development level of a country’s non-metallic mineral industry.
1. Chemical properties and classification
Kaolinite is a type of hydrated aluminosilicate mineral, belonging to the 1:1 layered silicate, and is the main constituent mineral of kaolin. Its theoretical chemical formula is Al ₂ Si ₂ O ₅ (OH) ₄ or written as 2SiO ₂ · Al ₂ O ∝· 2H ₂ O, with a theoretical chemical composition of SiO ₂ 46.54%, Al ₂ O ∝ 39.5%, and H ₂ O 13.96%. The crystal structure is composed of a layer of silicon oxygen tetrahedral sheet and a layer of aluminum oxygen octahedral sheet connected by a common oxygen atom, and the interlayer is bonded by hydrogen bonds, so Kaolinite does not have interlayer expansion.
2. Physical characteristics and morphology
Pure Kaolinite is white or light gray in color, with a fine texture and a Mohs hardness of 1-2.5. Its density is about 2.54-2.60 g/cm ³, and its melting point is about 1785 ° C. Soil like or dense block like aggregates have water absorption when dry and plasticity when wet – wet soil can be molded into various shapes without breaking and can remain unchanged for a long time. The mineral has stable chemical properties, good insulation, fire resistance, and acid resistance.
3. Formation and industry positioning
Kaolinite is one of the most widely distributed clay minerals in nature, mainly formed by weathering or hydrothermal alteration of aluminosilicate minerals such as feldspar and mica under humid and hot climate conditions. Named after Gaoling Village in Jingdezhen, Jiangxi Province, the pure kaolin is also known as “Baiyun soil”. As one of the four major non-metallic minerals, Kaolinite and its constituent kaolin have a wide range of applications in dozens of industrial fields such as ceramics, papermaking, coatings, rubber, refractory materials, etc. It is one of the important indicators to measure the development level of a country’s non-metallic mineral industry.
Product Images & Packaging
Kaolinite Parameters
| Kaolinite Chemical Properties |
| Melting point | 560-600 °C (decomp) |
| density | 2.596 g/cm3 |
| form | powder |
| InChI | 1S/2Al.O2Si.3O/c;;1-3-2;;; |
| InChIKey | HNPSIPDUKPIQMN-UHFFFAOYSA-N |
| SMILES | O=[Si]=O.O=[Al]O[Al]=O |
| EPA Substance Registry System | Kaolinite (Al2(OH)4(Si2O5)) (1318-74-7) |
The application of Kaolinite
The main uses of Kaolinite
Kaolinite, as the core mineral component of kaolin, plays an irreplaceable fundamental role in many industrial fields due to its unique plasticity, refractoriness, chemical stability, and adsorption properties.
Ceramic manufacturing in the ceramic industry is the largest application area of Kaolinite, accounting for over 40% of the total global production of kaolin. Kaolinite endows ceramic bodies with good plasticity, facilitating molding operations; During the high-temperature firing process, Kaolinite is transformed into mullite, providing mechanical strength and thermal stability for ceramic products; Its high whiteness ensures the appearance quality of ceramic products. Kaolinite is widely used in the production of daily ceramics (tableware, tea sets), architectural ceramics (wall and floor tiles, sanitary ware), electrical ceramics (insulators), and chemical ceramics. Kaolinite, mainly composed of kaolin, has always been the core raw material for ceramic production in famous porcelain capitals in China such as Jingdezhen and Liling.
paper industry
Kaolinite is one of the most widely used inorganic mineral pigments in the paper industry. As a coating pigment, its sheet-like structure is coated on the surface of paper to form a smooth and dense coating, significantly improving the smoothness, glossiness, ink absorption, and printing adaptability of paper. It is widely used in the production of high-end printing paper such as copperplate paper and lightweight coated paper. As a filler, Kaolinite is filled between pulp fibers, which can improve the opacity, whiteness, and softness of paper while reducing production costs. Papermaking grade Kaolinite requires high whiteness, fine particles, narrow particle size distribution, and low viscosity, and is usually purified using grading and peeling processes.
Coatings, Rubber and Plastic Industry
Kaolinite is used as a building pigment and functional filler in the coatings industry. It can regulate the rheological properties of coatings, prevent pigment settling, improve the covering power, scrub resistance, and weather resistance of coatings. Calcined Kaolinite is widely used in latex paints, water-based coatings, and powder coatings due to its high whiteness and high electrical resistivity. In the rubber industry, Kaolinite is used as a reinforcing filler to improve the tensile strength, wear resistance, and tear resistance of rubber products. It is commonly used in products such as tires, hoses, tapes, and seals. In the plastic industry, Kaolinite improves the electrical insulation, thermal stability, and dimensional stability of plastic products, and is suitable for general plastics such as polyvinyl chloride, polyethylene, and polypropylene.
Chemical Environmental Protection and High tech Field
Kaolinite, which has undergone deep processing, has shown broad application prospects in the high-tech field. In terms of catalyst carriers, modified Kaolinite is used for petroleum cracking catalysts and automotive exhaust purification catalysts. In the field of adsorbent materials, Kaolinite and its modified products can be used for the adsorption and removal of heavy metal ions and organic pollutants in wastewater treatment. Kaolinite is used as a filler and dispersant for wettable powders in pesticide carriers. In the cosmetics industry, superfine Kaolinite is used for foundation make-up, eye shadow and other products to provide good spread and absorption. In addition, Kaolinite plays a unique role in cutting-edge fields such as pharmaceutical tablet excipients, plastic agricultural film anti fog agents, fertilizer anti caking agents, special ceramics (electronic ceramics, bioceramics), and aerospace composite materials.
The use of Kaolinite fully reflects the evolution of natural minerals from traditional handicrafts to modern industrial civilization. It is not only the cultural foundation of Jingdezhen’s millennium porcelain capital, but also supports the glory of ceramic art; It is also an indispensable functional material for modern papermaking, coatings, and rubber industries, ensuring the quality of daily necessities; It has shown new vitality in environmental governance and new material development. This ancient mineral is continuously serving the development of human civilization with its unique physical and chemical endowments.
Kaolinite 's Procurement Guide
Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)
2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ：1kg
3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services
FAQ
A white powder mineral, Kaolinite has a high plasticity. Kaolin is used in ceramics, paper, and coatings.
High whiteness (>=85-93%), high dispersion, good plasticity and fire resistance (1770-1790), minimum heavy metals.
The cosmetic/food grade Kaolin we use is in compliance with all safety standards including skin contact, indirect food use and other safety standards.
25kg moisture-proof kraft paper bags for non-hazardous goods, available via sea/air shipment; 100g sample provided with COA/MSDS.
Related References
Manufacturer of Kaolinite
Achievements
Advantage
Service
FAQ
Advice on Shipping
Achievements
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Kaolinite manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Advantage
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Service
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
FAQ
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
Advice on Shipping
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
Zhishang Bio company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.
And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.
The company integrates research and development, production, and trade, with a modern production base, advanced testing equipment, and an experienced technical team to ensure that products reach industry-leading levels in purity, stability, and environmental friendliness.
