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Sigma-Aldrich

LUDOX® TMA colloidal silica

34 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:
24866358
NACRES:
NA.22

description

colloidal

form

liquid

concentration

34 wt. % suspension in H2O

surface area

~140 m2/g

pH

4-7

density

1.23 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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Application

LUDOX® TMA colloidal silica along with n-amylamine has been used as surface active particles to stabilize foams from drainage, coarsening and coalescence.
Other applications include:
  • Preparation of porous Bragg mirror and using it for flexible and biocompatible optical interference filters by infiltration of polydimethylsiloxane.
  • It acts as a filler and surfactant while preparing latexes by miniemulsion polymerization.
  • As a stabilizer for water-in-cyclohexane miniemulsions to form stable polyurethane shells via interfacial polyaddition.
  • Synthesis of organic-inorganic nanocomposite films from polyurethane dispersions and colloidal silica particles.

Features and Benefits

deionized

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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Organic-inorganic nanocomposite films made from polyurethane dispersions and colloidal silica particles.
Serkis M, et al.
Composite Interfaces, 23(2), 157-173 (2016)
Silica nanoparticles as surfactants and fillers for latexes made by miniemulsion polymerization.
Tiarks F .
Langmuir, 17(19), 5775-5780 (2001)
Surfactant-free polyurethane nanocapsules via inverse pickering miniemulsion.
Schoth A, et al.
Langmuir, 31(13), 3784-3788 (2015)
On the long-term stability of foams stabilised by mixtures of nano-particles and oppositely charged short chain surfactants.
Arriaga LR, et al.
Soft Matter, 8(43), 11085-11097 (2012)
Flexible, adhesive, and biocompatible Bragg mirrors based on polydimethylsiloxane infiltrated nanoparticle multilayers.
Calvo ME and Mi?guez H.
Chemistry of Materials, 22(13), 3909-3915 (2010)
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