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420875

Sigma-Aldrich

LUDOX® AM colloidal silica

30 wt. % suspension in H2O

Synonym(s):

Silica preparation

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About This Item

Linear Formula:
SiO2
CAS Number:
7631-86-9
Molecular Weight:
60.08
MDL number:
MFCD00011232
UNSPSC Code:
12352309
PubChem Substance ID:
24866359
NACRES:
NA.22

description

colloidal

form

liquid

concentration

30 wt. % suspension in H2O

surface area

198-250 m2/g

pH

8.6-9.3

density

1.21 g/mL at 25 °C

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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General description

contains sodium stabilizing counterion.

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

Application

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

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

Legal Information

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

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H317,H412

Hazard Classifications

Aquatic Chronic 3 - Skin Sens. 1

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
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)
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)
K E Kovalenko et al.
Ecological applications : a publication of the Ecological Society of America, 23(5), 1048-1060 (2013-08-24)
Boreal wetlands play an important role in global carbon balance. However, their ecosystem function is threatened by direct anthropogenic disturbance and climate change. Oil sands surface mining in the boreal regions of Western Canada denudes tracts of land of organic
David M Brown et al.
Toxicology letters, 224(1), 147-156 (2014-01-28)
We investigated the effects of silica particles and nanoparticles (NPs) (50 nm and 200 nm) with a neutral and positively charged surface when dispersed in saline, bovine serum albumin (BSA) or lung lining fluid (LLF) 24 h post instillation into
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