Kaolin and bentonite, what is the difference?
Guanyintu is rich in silicon, zinc, aluminum, magnesium and other minerals, chemical molecular formula: Al4 (Si4O10) in OH6, except Al2O3, also containing SiO2.Bentonite (Bentonite) in transliteration, predominantly montmorillonite aqueous clay minerals, the chemical composition of montmorillonite: (Al2, Mg3) [Si4O10][OH]2?? nH2O, because it has special properties. Such as: swelling, adhesion, adsorption, catalysis, thixotropy, suspension and cation exchange, etc., so widely used in various industrial fields. Foreign countries have been applied in more than 100 sectors of industry, agriculture and production in 24 fields, and there are more than 300 products, so people call it "omnipotent soil"".
In the old society, the poor in lean or famine years, often eat guanyintu live; the soil can eat, but can not be digested, after eating to eat a small amount of stool, abdominal distension, not fatal; although not hungry, but because of the lack of nutrition, people still die.
Guanyintu also known as kaolin, bentonite, bentonite or stone, Gansu, bentonite and clay, white clay,Montmorillonite is the main component of clay minerals, its chemical composition is fairly stable, known as "universal stone."".
Bentonite is also called bentonite and bentonite rock. The development and use of bentonite in China has a long history, but it was only used as a kind of detergent. (in Sichuan Renshou area, there was an open-air mine hundreds of years ago, and the local people called bentonite as earth powder). What is widely used but only a few hundred years of history. The earliest discovery in the United States was the yellowish green clay in Wyoming's ancient state, which expanded into a paste after adding water. Later, people referred to all these clays as "bentonite". In fact, the main mineral composition of montmorillonite is montmorillonite, the content is 85-90%, and some properties of bentonite are also determined by montmorillonite. Montmorillonite can be a variety of colors, such as yellow green, yellow white, gray, white and so on. Can be dense, massive, or for loose soil, with fingers rubbed when there is a sense of sliding, small pieces of water after the volume of swelling several times to 20-30 times, in the water as a suspended shape, less water when it was mushy. The properties of montmorillonite are related to its chemical composition and internal structure.
