Galán, E. and Carretero, M.I., (1999) A new approach to compositional limits for sepiolite and palygorskite Clays and Clay Minerals 47 399 – 409 10.1346/CCMN.1999.0470402. Google Scholar. Hayashi, H., (1969) Infrared study of sepiolite and palygorskite on heating American Mineralogist 53 1613 1624. Google …
Sepiolite is a hydrous magnesium silicate formed by precipitation of near-surface brackish or saline waters, under semi-arid climatic conditions. Four major influences on the distribution of sepiolite are source materials, climate, physical parameters and associated phase relations. Two major pathways governing the occurrence of sepiolite …
SEPIOLITE. CAS number: 6 "No penalty" in all categories. INCI name: SEPIOLITE; EINECS/ELINCS number: 264-456-3; Its functions (INCI) Viscosity controlling : Increases or decreases the viscosity of cosmetics; Products that contains it. Yope. Sérum Capillaire Régénérant pour Cheveux Blonds et Éclaircis - 50 ml
The heat treatment process of the sepiolite was carried out following the temperature profile shown in Fig. 1. The sepiolite particles were placed into an iron tube. First, the temperature increased to 150 °C. After 30 min, the temperature increased up to 900 °C at a heating rate of 10 °C/min and was kept for 90 min.
a mineral, hydrous magnesium silicate, H 4 Mg 2 Si 3 O 10, occurring in white, claylike masses, used esp. for pipe bowls; sepiolite. 2. a tobacco pipe with a bowl made of meerschaum.
Organo-mineral derivatives of sepiolite and palygorskite are of great interest to industry, because they have the surface and reactive properties of the grafted organic molecules …
Sepiolite fiber is a hydrated magnesium silicate, with formula Si12Mg8O30 (OH)4(OH2)4 8H2O, that exhibits a microfibrous or needlelike morphology with a particular length in …
Sepiolite Mg4Si6O15(OH)226H2O. Crystal Data: Orthorhombic. Point Group: 2=m 2=m 2=m; possible. Compact nodular, earthy, clayey, massive. Rarely ̄ne ̄brous along [001], …
Laser confocal microscopy images of sepiolite fibers (0, 5 and 50 ng·μl −1) in V79 cells.(A) Channels: IR (infrared), red, green and blue, at given excitation and emission wavelengths ...
Sep and Pal can consist of fibres with different sizes, curls, or types of aggregation. Several morphological fibre classifications have been made according to length, the width–length ratio (W/L), or curliness. In addition, local heterogeneities have been found as a consequence of particular genetic conditions.
AbstractSelection of proper drilling fluid is recognized as a challenging process in high temperature environments. Therefore, chemical and physical properties of drilling mud should be suitable at high temperatures to minimize mud and borehole instabilities. This study is aimed to characterize rheological and filtration properties of sepiolite based …
Sepiolite (Si 12 Mg 8 O 30 (OH,F) 4].(H 2 O) 4 ·8H 2 O) is a valuable filler with an enormous capacity to be used in thermoplastic composites, substituting costly reinforcing fillers, such as graphene and CNTs. Sepiolite strengthened polymers nanocomposite materials have encouraged the field of research and ventures because of …
Here sepiolites of different resources (white sepiolite, WS; 20% w/w sepiolite content/brown sepiolite, BS; 70% w/w sepiolite content) were processed (PWS and PBS) …
14 Si 28.085500000 Silicon. See more Silicon products. Silicon (atomic symbol: Si, atomic number: 14) is a Block P, Group 14, Period 3 element with an atomic weight of 28.085. The number of electrons in each of Silicon's shells is 2, 8, 4 and its electron configuration is [Ne] 3s 2 3p 2. The silicon atom has a radius of 111 pm and a Van der ...
Abstract. The palygorskite-sepiolite group of clay minerals has a wide range of industrial applications derived mainly from its sorptive, rheological and catalytic properties which are based on the fabric, surface area, porosity, crystal morphology, structure and composition of these minerals. For assessing potential industrial uses, the ...
The omission of peaks at 12.12 and 6.8 Å and the emergence of peaks at 10.08 and 8.04 Å were interpreted as the formation of a new mineral phase that was referred to as "sepiolite dehydrate" by ...
Sepiolite is a natural magnesium-rich hydrous silicate clay mineral with fibrous crystal morphology (Fig. 3.2 A).The ideal structural formula of sepiolite is Si 12 O 30 Mg 8 (OH) 4 (OH 2) 4 ·nH 2 O, as proposed independently by Nagy and Bradley [1] and Brauner and Preisinger [30].According to them, the crystalline lattice of sepiolite was …
Sepiolite, (German: "sea-"), a fibrous hydrated magnesium silicate, Mg4Si6O15 (OH)2·6H2O, that is opaque and white, grey, or cream in colour. It may resemble the bones of the cuttlefish Sepia, from which the …
Raw sepiolite mineral was added to deionized water and mechanically stirred for 30 min, followed by standing for 24 h under ambient temperature to absorb water sufficiently. It was then immersed in the adequate amount of sodium hexametaphosphate solution (0.2 wt%) and mechanically stirred at 400 rpm for 3 h to eliminate impurities from …
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Characterization. Metal ions. Desalination 230 (2008) 248–268 Functionalized sepiolite for heavy metal ions adsorption Mehmet Doğan*, Yasemin Turhan, Mahir Alkan, Hilmi Namli, Pınar Turan, Özkan Demirbaş Department of Chemistry, Faculty of Science and Literature, Balikesir University, 10145 Balikesir, Turkey Tel. +90 …
Sepiolite is a hydrated magnesium silicate with a microfibrous morphology and a particular texture that provides a high specific surface area. Together with …
sepiolite concentrat ions in animal feeds from 0.5 to. 3% in cattle and poultr y feed result in increas ed. weight ga ins of about 7% for pigs and 10% for. broile r ch ickens and rabbit s (Al ...
In order to quantify this phenomenon, optical density using a spectrophotometer (at 600 nm) were monitored (Fig. 1 B and C).Almost all bacterial dispersion sediments in 20 min with 10 or 20 mg/ml of sepiolite (Fig. 1 B).Moreover, between 10 and 15 mg/ml of sepiolite were sufficient to settle almost all bacteria in 1 h …
Sepiolite is a hydrated magnesium silicate with a fibrous structure. It undergoes acid‐base interactions around the natural pH of 8.5. The zeta potential (zp) of sepiolite depends on the type ...
The main mineral phase present in the materials was sepiolite, with minor dolomite, and traces of quartz and feldspar minerals and amorphous matter. Adsorption isotherms of ethylene at 273 K were measured on sepiolite samples over a pressure range of 0–100 kPa. As a result of partial blockage of the sepiolite channels, the ethylene adsorption ...
About 2% syneresis occurred in the dry attapulgite clay mixture and about 4% occurred in the sepiolite mixture. This finding indicates that attapulgite is an efficient suspending agent for liquid ...
Synonyms : SEPIOLITE,Sepiolite powder CAS : 6 EC number : 264-465-3 MF : H3MgO6Si2(-3) MW : 179.49 Chemical Book 2. no data available Advice for firefighters Wear self-contained breathing apparatus for firefighting if necessary. SECTION 6: Accidental release measures
