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70253

Sigma-Aldrich

Sepiolite

powder

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1 KG
€83.00

€83.00

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1 KG
€83.00

About This Item

CAS Number:
63800-37-3
EC Number:
264-465-3
MDL number:
MFCD01742951
UNSPSC Code:
12352100
PubChem Substance ID:
329762382
NACRES:
NA.23

€83.00

Please contact Customer Service for Availability
Request a Bulk Order

form

powder

Quality Level

100

concentration

~13% Mg

loss

≤10% loss on drying

SMILES string

O.[Mg++].[Mg++].O[Si]([O-])=O.O[Si]([O-])=O.[O-][Si]([O-])=O

InChI

1S/2Mg.2HO3Si.O3Si.H2O/c;;3*1-4(2)3;/h;;2*1H;;1H2/q2*+2;2*-1;-2;

InChI key

TUKQLEWOUPCTOS-UHFFFAOYSA-N

General description

Sepiolite is a hydrated magnesium silicate that belongs to the class of sepiolite-palygorskite. Its properties include high absorption capacity and good rheological behavior.[1][2]

Application

Sepiolites can be used as absorbents for potential applications in catalytic systems and wastewater treatment.[3]

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM6474
BCCM6473
BCCK6290
BCCJ3215
BCCJ3216

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Adsorption kinetics and thermodynamics of an anionic dye onto sepiolite
Alkan M, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 101(3), 388-396 (2007)
Experimental and Atomic Modeling of the Adsorption of Acid Azo Dye 57 to Sepiolite
Karatacs D, et al.
Clays and Clay Minerals, 66(5), 426-437 (2018)
Thermal and morphological characterisation of organically modified sepiolite
Tartaglione G, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 107(1-2), 161-168 (2008)
Xuefeng Liang et al.
Chemosphere, 90(2), 548-555 (2012-09-22)
Mercapto functionalized sepiolite (MSEP) was prepared by nanotexturization method and applied for the sorption of Pb(2+) from aqueous solution. These samples before and after sorption were characterized through XRD, FT-IR, (29)Si and (13)C CP/MAS NMR and XPS. The sorption behaviors
R Portela et al.
Environmental science & technology, 46(9), 5040-5048 (2012-03-27)
The photocatalytic efficiency of TiO(2)-SiMgO(x) plates to oxidize H(2)S was first evaluated in a flat laboratory reactor with 50 mL min(-1) synthetic air containing 100 ppm H(2)S in the presence of humidity. The use of the photocatalyst-adsorbent hybrid material enhanced
View All Related Papers

Questions

1–6 of 6 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. What is the molecular weight of the Sepiolite which you are providing?

    1 answer

    1. The calculated molecular weight of this product, in anhydrous form, is 278.87 g/mol. However, this is a hydrated material that includes a variable amount of H2O. The water content may range from 5 - 10% and is reported in the lot specific Certificate of Analysis. Please see the link below to review a sample or lot specific Certificate:
      https://www.sigmaaldrich.com/product/aldrich/70253#product-documentation

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  4. What is the density of this material?

    1 answer

    1. The density of this product is reported on the Product Safety Data Sheet as 2.000 - 2.300 g/cm3 at 20 °C (68 °F).

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  5. Can you give information about the specific surface area and fiber diameters and lengths of this product with CAS number 63800-37-3 ?

    1 answer

    1. The particle size and surface area of Product 70253 are not determined. However, the d50 is generally in the range of 7 to 11 µm.

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  6. Is this item, Sepiolite 70253, the fibrous form?

    1 answer

    1. This product is in powder form.

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