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Sodium bentonite is the more valuable but calcium bentonite is more common. [7] In stratigraphy and tephrochronology , completely devitrified (weathered volcanic glass) ash-fall beds are sometimes also referred to as "K-bentonites" (the illitized clay rock) when the dominant clay species is illite (a non-swelling clay). [ 9 ]
Bentonite usually forms from weathering of volcanic ash, most often in the presence of water. However, the term bentonite, as well as a similar clay called tonstein, have been used for clay beds of uncertain origin. For industrial purposes, two main classes of bentonite exist: sodium bentonite and calcium bentonite.
A sample of fuller's earth in its raw state from Pakistan. Fuller's earth is a term for various clays used as an absorbent, filter, or bleaching agent. Products labeled fuller's earth typically consist of palygorskite (also known as attapulgite) or bentonite. [1]
Additionally, clumping litter that is made from sodium bentonite clay may also be an issue for some cats. What is the least smelly cat litter? Crystal cat litters, such as ones that are made from ...
Caustic (sodium hydroxide), anhydrous lime, soda ash, bentonite, baryte and polymers are the most common chemicals used in water-based drilling fluids. Oil Base Mud and synthetic drilling fluids can contain high levels of benzene, and other chemicals
Phoslock is the commercial name for a bentonite clay in which the sodium and/or calcium ions are exchanged for lanthanum.The lanthanum contained within Phoslock reacts with phosphate to form an inert mineral known as rhabdophane ().
Montmorillonite is the main constituent of bentonite and Heilerde loess. A medical preparation is called diosmectite. Palygorskite or attapulgite is a very absorbent clay, somewhat similar to bentonite. When used in medicine, it physically binds to acids and toxic substances in the stomach and digestive tract.
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