Sepiolite


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sepiolite

[′sē·pē·ə‚līt]
(mineralogy)
Mg4(Si2O5)3(OH)2·6H2O A soft, lightweight, absorbent, white to light-gray or light-yellow clay mineral, found principally in Asia Minor; used for tobacco pipe bowls and ornamental carvings. Also known as meerschaum; sea-foam.

Sepiolite

 

a clay mineral of the silicate class having a complex chain-lattice structure. Its chemical composition is Mg4[Si6O15](OH)2·6H2O. Mg can be replaced by Fe2+. Fe3+, Ni, Al, and Cu (varieties: ferrisepiolite, aluminosepiolite, and nickelsepiolite). Sepiolite is thought to crystallize in the ortho-rhombic system, forming fibrous submicroscopic crystals. Its properties are analogous to those of palygorskite, and it also occurs as compact or spongy aggregates of very light weight (meerschaum). Sepiolite is formed in soils under conditions of an arid or semiarid climate, in sea and saline basins, and among sedimentary argillaceous carbonate rocks. It is also formed from the weathering of serpentine masses. Varieties of sepiolite rich in nickel are components of silicate nickel ores.

References in periodicals archive ?
Sepiolite is expected to have a remarkable effect on the mechanical properties of rubber composites.
Eight experimental groups (2 sepiolite applications (+ and -) and 4 different feed groups (control, guar meal, molasses and guar meal+molasses)) were formed for each straw.
Determination of adsorptive properties of a Turkish sepiolite for removal of reactive blue 15 anionic dye from aqueous solutions.
Khademi, "Cadmium sorption from aqueous solutions onto Iranian sepiolite: kinetics and isotherms," Journal of Central South University, vol.
Poly (lactic acid) (PLA) based nanocomposites prepared by adding 5wt% filler content of organically modified montmorillonite (CLO) and unmodified sepiolite (SEP) were obtained by melt blending procedure.
Effet de l'inclusion de 2% de Sepiolite "EXAL" clans les aliments a deux niveaux energetiques presentes en granules pour porcelets et porcs charcuters.
(2012) reported improved body weight and overall weight gain in broilers fed Sepiolite clay.
Dincel, "Ammonium ion adsorption with sepiolite: use of transient uptake method," Chemical Engineering and Processing, vol.
[7] studied the removal of Acid Yellow 49 from aqeous solution by adsorption on sepiolite (a clay mineral).