This product has not been tested for enzyme immobilization. The lack of testing means that the suitability for enzyme immobilization is uncertain. It is advisable to conduct preliminary tests evaluate the performance before scalable use.
643645
Silice
MCM-41 type (hexagonal)
Synonyme(s) :
Dioxyde de silicium
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About This Item
Formule linéaire :
SiO2
Numéro CAS:
Poids moléculaire :
60.08
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352103
ID de substance PubChem :
Nomenclature NACRES :
NA.23
Le tarif et la disponibilité ne sont pas disponibles actuellement.
Produits recommandés
Forme
powder
Superficie
~1000 m2/g , BET
Taille des cellules unitaires
4.5-4.8 nm
Dimension de pores
0.98 cm3/g pore volume
2.1-2.7 nm pore size
pb
2230 °C (lit.)
Pf
>1600 °C (lit.)
Masse volumique apparente
0.34 g/mL
Application(s)
battery manufacturing
Chaîne SMILES
O=[Si]=O
InChI
1S/O2Si/c1-3-2
Clé InChI
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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Catégories apparentées
Description générale
Silica, mesostructured (MCM-41) is a part of low-density organized mesoporous silicate system which has a 2D hexagonal phase, prepared in the presence of quaternary ammonium halide surfactant. It has ordered and large pores with diameter in the range 1.5-10 nm and specific surface area of 1500 m2/g.[1][2]
Application
Code de la classe de stockage
13 - Non Combustible Solids
Classe de danger pour l'eau (WGK)
nwg
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
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Les clients ont également consulté
Chiral mesostructured silica nanofibers of MCM-41
Wang B, et al.
Angewandte Chemie (International ed. in English), 45(13), 2088-2090 (2006)
Adsorption of CO2-containing gas mixtures over amine-bearing pore-expanded MCM-41 silica: application for gas purification
Belmabkhout Y, et al.
Industrial & Engineering Chemistry Research, 49(1), 359-365 (2009)
In situ investigations on cetyltrimethylammonium surfactant/silicate systems, precursors of organized mesoporous MCM-41-type siliceous materials
Frasch J, et al.
Langmuir, 16(23), 9049-9057 (2000)
Oxygen sensing materials based on mesoporous silica MCM-41 and Pt (II)-porphyrin complexes
Zhang H, et al.
Journal of Materials Chemistry, 15(31), 3181-3186 (2005)
Effect of surface functionalization of MCM-41-type mesoporous silica nanoparticles on the endocytosis by human cancer cells
Slowing I, et al.
Journal of the American Chemical Society, 128(46), 14792-14793 (2006)
Articles
Mesoporous Materials include a range of high surface area porous silicates with applications in gas adsorption, drug delivery, diagnostics and catalysis.
Mesoporous silica used in wastewater remediation, air cleaning, catalysis, bio-catalysis, and drug delivery.
Mesoporous silica used in wastewater remediation, air cleaning, catalysis, bio-catalysis, and drug delivery.
Mesoporous silica used in wastewater remediation, air cleaning, catalysis, bio-catalysis, and drug delivery.
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I will functionalize this product with (3-Aminopropyl)triethoxysilane (APTES) to covalently bind the enzyme. I will also bind it by adsorption without using APTES. Is this product suitable for enzyme immobilization?
1 answer-
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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Is CTAB expected to be contained in product 643645?
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No, this material is not expected to contain CTAB as it is calcined at 550°C for 24 hours to remove the CTAB.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Is the surface density of silanol groups of Product 643645, Silica, mesostructured MCM-41 type (hexagonal), known?
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For Product 643645, Silica, mesostructured MCM-41 type (hexagonal), between 10 and 15 % of the silicon centers are hydroxylated.
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How does the storage temperature relate to shipping conditions?
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The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment.
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