China Clay Powder

China Clay Powder, also known as kaolin clay, is a natural mineral that holds significant value in numerous industries. Renowned for its versatility, China Clay Powder finds applications across a wide range of sectors, including ceramics, paints, coatings, plastics, paper, rubber, and cosmetics. Its exceptional whiteness makes it highly desirable for products requiring a bright and pure white color, such as ceramics and sanitaryware. Moreover, its excellent opacity enhances coverage and hiding power in paints, coatings, and inks. China Clay Powder acts as a binding and reinforcing agent in rubber, plastics, and adhesives, enhancing strength and durability. With its low abrasiveness, it provides a gentle exfoliating effect in skincare products and contributes to the polishing of various materials. Additionally, its thermal stability makes it suitable for use in refractory materials and high-temperature applications. China Clay Powder's versatility, aesthetic appeal, and functional properties make it an indispensable mineral in numerous industries, contributing to the development of high-quality and performance-driven products.

Chemical Composition

The chemical composition of China Clay Powder, also known as kaolin clay, primarily consists of hydrated aluminum silicate. Its chemical formula is Al2Si2O5(OH)4, indicating the presence of aluminum (Al), silicon (Si), oxygen (O), and hydroxyl groups (OH). The mineral structure of China Clay Powder is layered, with each layer consisting of a sheet of aluminum and silicon-oxygen tetrahedra. The layers are held together by water molecules and hydrogen bonding. The unique arrangement of these elements gives China Clay Powder its characteristic properties, including its fine particle size, high whiteness, and excellent opacity. The chemical composition of China Clay Powder plays a vital role in its various applications across industries such as ceramics, paints, coatings, and plastics, where it contributes to the desired properties and performance of the final products.

• SiO2 : 45% to 48%

• Al2O3 : 33% to 39%
• Fe2O3 : Below 1.5%
• TiO2 : Below 0.5%
• CaO : Below 1%
• MgO : Below 0.5%
• LOI : 12% to 14%
• Acid Insoluble : 97.5%
• PH : 8.1
• B.D. : 0.5 to 0.8 gm/cc
• Oil Absorption : 39.5 ml/100gm
• Whiteness : 78% to 90%

Variation of the specifications stated due to natural raw materials and environment conditions are possible though they have no influence on the application properties described.