643645

Sigma-Aldrich

Silica, mesostructured

MCM-41 type (hexagonal)

Sinônimo(s):
Silica, Silicon dioxide
Fórmula linear:
SiO2
Número CAS:
Peso molecular:
60.08
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.23

Nível de qualidade

100

forma

powder

tamanho da célula unitária

4.5-4.8 nm

tamanho de poro

0.98 cm3/g pore volume
2.1-2.7 nm pore size

área da superfície

spec. surface area ~1000 m2/g (BET)

pb

2230 °C (lit.)

pf

>1600 °C (lit.)

densidade volumétrica

0.34 g/mL

Setor em destaque

Battery Manufacturing

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

MCM-41 may be used as a base material that can be assembled with platinum complexes to develop luminescent oxygen sensing materials. It may also be used as an adsorbent in CO2 capture application. Surface functionalized MCM-41 may be used as a catalyst in the synthesis of bisphenol A.

Embalagem

5, 25 g in glass bottle

storage_class_code

11 - Combustible Solids

WGK Alemanha

nwg

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Certificado de análise

Certificado de origem

  1. How does the storage temperature relate to shipping conditions?

    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. See Shipping and Storage for more information.

  2. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  3. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    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. 

  6. Is the surface density of silanol groups of Product 643645, Silica, mesostructured MCM-41 type (hexagonal), known?

    For Product 643645, Silica, mesostructured MCM-41 type (hexagonal), between 10 and 15 % of the silicon centers are hydroxylated.

  7. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

  8. My question is not addressed here, how can I contact Technical Service for assistance?

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Chiral mesostructured silica nanofibers of MCM-41
Wang B, et al.
Angewandte Chemie (International ed. in English), 45(13), 2088-2090 (2006)
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)
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)
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)
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