White china clay, also known as pyrophyllite, is a type of soft white clayey mineral. It has a wide range of applications in various industries such as paints, ceramics, paper, cosmetics, and pharmaceuticals. Traditionally from China where it was originally mined, it is now found in abundance in India.
Other Names | Pyrophyllite, Kaolin, Aluminum Silicate |
Chemical Composition | Aluminum Silicate [Al2Si4O10(OH)2] |
Hardness [On Mohs Scale of 1 – 10] | 1.5 – 2.0 |
SiO2 | Min. 60.00% |
Al2O3 | Min. 25.00% |
CaO | Max. 1.00% |
MgO | Max 1.00% |
K2O | Max 6.00% |
Na2O | Max 1.00% |
Fe2O3 | Max 1.00% |
TiO2 | Below Detection Limit |
LOI | Max 7.00% |
Mesh | 300 – 500 |
Whiteness | 85% – 90% |
Colour | White, Creamish White |
Industrial Applications | Paints, Ceramics, Paper, Cosmetics, Phamaceuticals |
Properties of White China Clay
- Soft and Fine: White china clay is a soft and fine powder that has a smooth texture.
- High Plasticity: It has high plasticity, which means it easily molds and shapes into any desired form.
- Low Abrasiveness: It has low abrasiveness, which makes it ideal for use in cosmetics and pharmaceuticals.
Applications
- Paints: White china clay is the base mineral filler in wood varnishes and paints.
- Ceramics: It is a key ingredient in the production of ceramics such as porcelain and fine china. It functions as a binder and filler in the clay mixture. Herein, it helps to improve the strength and whiteness of the finished product.
- Paper: As a coating agent in paper production it helps to improve the surface quality and printability of the paper.
- Cosmetics: As a natural absorbent and a thickening agent, it is an important ingredient in face masks, scrubs, and powders.
- Pharmaceuticals: As an excipient in pharmaceuticals, it helps to improve the flowability and compressibility of tablets and capsules.
At Avani Group of Industries, we provide high-quality white china clay that is suitable for various industrial applications. Since our manufacturing process uses the latest technologies available, we are able to achieve the best results. Our material is available in different grades to meet the specific requirements of our customers.
Contact us today to learn more about our white china clay and to get a quotation.