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Sigma-Aldrich

LUDOX® TM-40 colloidal silica

40 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:
24866350
NACRES:
NA.22

description

colloidal

form

liquid

concentration

40 wt. % suspension in H2O

surface area

~140 m2/g

pH

9.0

density

1.3 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Application

LUDOX® TM-40 colloidal silica has been used:
  • As a colloidal silica template for the synthesis of carbon nanocapsules.
  • In the synthesis of conducting nanocomposite polymer foams (hybrid of carbon black/silica/polymer) used as gas sensors.
  • As a silicon source for the synthesis of Zwitterion-stabilized silica nanoparticles.
  • As a silicon source for the fabrication of transparent superhydrophilic/superhydrophobic silica nanoparticulate thin films.
  • In the synthesis of microporous titanosilicate ETS-10 used as a catalyst in Knoevenagel condensation reaction.

Legal Information

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

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

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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Selective Fabrication of Carbon Nanocapsules and Mesocellular Foams by Surface-Modified Colloidal Silica Templating
Jang J and Lim B
Advanced Materials, 14(19), 1390-1393 (2002)
Fabrication and characterization of transparent superhydrophilic/superhydrophobic silica nanoparticulate thin films
Lin Y-H, et al.
Thin Solid Films, 519(16), 5450-5455 (2011)
Conducting nanocomposite polymer foams from ice-crystal-templated assembly of mixtures of colloids
Colard CAL, et al.
Advanced Materials, 21(28), 2894-2898 (2009)
Liquid-phase Knoevenagel reactions over modified basic microporous titanosilicate ETS-10
Goa Y, et al.
J. Catal., 224(1), 107-114 (2004)
Zwitterion-stabilized silica nanoparticles: toward nonstick nano
Estephan ZG, et al.
Langmuir, 26(22), 16884-16889 (2010)
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