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Palygorskite (Russian: Палыгорскит) or attapulgite is a magnesium aluminium phyllosilicate with the chemical formula (Mg, Al)2 Si 4 O 10(O H)·4 (H 2 O) that occurs in a type of clay soil common to the Southeastern United States. It is one of the types of fuller's earth.
Jan 1, 2024 · The clay mineral attapulgite derives its non-swelling needle-like morphology from its three-dimensional crystal structure. The shape and size of the needles result in unique colloidal properties, especially resistance to high concentrations of electrolytes, and give high surface area, high porosity particles when thermally activated.
The clay mineral attapulgite derives its non-swelling needle-like morphology from its three-dimensional crystal structure. The shape and size of the needles result in unique colloidal properties, especially resistance to high concentrations of electrolytes, and give high surface area, high porosity particles when thermally activated.
Feb 1, 2024 · Attapulgite is an in-demand material because of its natural properties that make it a highly desirable industrial additive. What is attapulgite used for? Industrial applications of attapulgite range from drilling fluid additives and concrete admixtures to rheology modifiers and ceramic coatings.
Attapulgite is a magnesium aluminum silicate clay of very fine particle size. It is also known as Fullers Earth and is closely related to Sepiolite mineral. Unlike bentonite (or montmorillonite) attapulgite crystals are needle shaped (acicular) rather than flat or flake-like.
The name attapulgite was first given by Lapparent (1935) to a clay mineral found in deposits in Attapulgus, Georgia, USA and Mormoiron, France. According to Bailey et al. (1971), the name palygorskite has priority over attapulgite and is adopted through this chapter.
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Palygorskite (also known as attapulgite) was considered by previous Working Groups in June 1986 (IARC, 1987a) and March 1987 (IARC, 1987b). New data have since become available, and these have been incorporated in the present monograph and taken into consideration in the evaluation.
