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420875

Sigma-Aldrich

LUDOX® AM colloidal silica

30 wt. % suspension in H2O

Sinônimo(s):

Silica preparation

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R$ 434,00
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1 L
R$ 434,00
4 L
R$ 1.163,00
18 L
R$ 2.149,00

About This Item

Fórmula linear:
SiO2
Número CAS:
7631-86-9
Peso molecular:
60.08
Número MDL:
MFCD00011232
Código UNSPSC:
12352309
ID de substância PubChem:
24866359
NACRES:
NA.22

R$ 434,00

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descrição

colloidal

Nível de qualidade

200

Formulário

liquid

concentração

30 wt. % suspension in H2O

área da superfície

198-250 m2/g

pH

8.6-9.3

densidade

1.21 g/mL at 25 °C

cadeia de caracteres SMILES

O=[Si]=O

InChI

1S/O2Si/c1-3-2

chave InChI

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Descrição geral

contains sodium stabilizing counterion.

LUDOX® AM colloidal silica consists of more condensed silicon structure and it is used in the preparation of polyaniline dispersions.[1][2]

Aplicação

LUDOX® AM colloidal silica can be used as a source of silica for the synthesis of:
  • NaX zeolites by hydrothermal method.[3]
  • Chrysotile-type Mg3Si2O5·(OH)4 nanotubes (MgSi-NTs).[4]

It can also be used as a binder for ceramic slurries.[5]

Informações legais

LUDOX is a registered trademark of W.R. Grace & Co.-Conn.

Pictogramas

Exclamation mark
GHS07

Palavra indicadora

Warning

Frases de perigo

H317,H412

Classificações de perigo

Aquatic Chronic 3 - Skin Sens. 1

Código de classe de armazenamento

12 - Non Combustible Liquids

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
STBL2267
STBL0033
STBJ6796
STBJ0495
STBH9412

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Investigation of the Use of Various Silica Source on NaX Zeolite Properties
Eskandari A, et al.
Journal of Chemical and Petroleum Engineering, 50(2), 1-7 (2017)
Polyaniline dispersions. 6. Stabilization by colloidal silica particles
Stejskal
Macromolecules, 29, 6814-6819 (1996)
Synthesis and catalytic activity of chrysotile-type magnesium silicate nanotubes using various silicate sources.
Lopez-Salinas E, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 274(2), 176-182 (2019)
Particle morphology and chemical microstructure of colloidal silica spheres made from alkoxysilanes
Van Blaaderen
Journal of Non-Crystalline Solids, 149, 161-178 (1992)
Influence of the Al2O3 Solid Phase on the Kinetics of Binding Ceramic Moulds.
Kolczyk J, et al.
Archives of Foundry Engineering, 17(4), 91-96 (2017)
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Questions

1–3 of 3 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

      Helpful?

  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

      Helpful?

  3. What is the smallest size of the silica particles?

    1 answer

    1. The Ludox products have an average particle size range of 7nm to 22nm. Please see the Ludox product comparison table below:

      Helpful?

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