What is Chinese clay?

China Clay is a rock that is rich in kaolinite and belongs to the group of aluminum silicates. It is often referred to as kaolin or white clay. Kaolin derives his name from the place where he was first discovered in China Kao-Lin. It is located in abundance in soils of hot, humid climate, especially in tropical rainforests. China Clay je průmyslový minerál, který se primárně používá v porcelánovém průmyslu, ale také v kombinaci s jinými surovinami v široké škále aplikací.

Kaolin is a soft white clay composed mainly of fine particles combined in the form of platelets. The clay is the result of changes in aluminum silicates found in rocks, which are rich in feldspar, such as granite, under the action of weather and hydrothermal processes. The process by which the granite is converted into a soft matrix found in kaolin deposits is called kaolinization.

different aspects affect the final use of Chinese clay. Degree of crystallinity influenza's brightness, whiteness, opacity, resistance and inIskosita, all of which determine his commercial interest. The use of Chinese clay includes coated paper, ceramics, medicine, cosmetics and food ingredients in the toothpaste. It is the main ingredient used in porcelain.

The Chinese were the first to develop techniques for the production of porcelain from Chinese clay, during the seventh and eighth centuries A.D. Until the 14th century, they exported them to Europe. The English developed techniques for obtaining porcelain from Chinese clay during the 18th century.

Clay China has poor plasticity, so it is generally used in combination with a number of additives, including bentonite and clay. Its value for the porcelain industry is due to the fact that after release maintains its whiteness. When fired at temperatures of about 2,372 degrees Fahrenheit (1300 degrees Celsius), this clay has about 12 percent.

Another use of Chinese clays is the production of smoking pipes in Asia and Europe. Kaolin is used in vsome of the stages of paper to ensure brightness. It contains uranium traces, so Chinese clay is a useful material in radiological dating. In organic farming, it is used in sprays to prevent insect damage.