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420778

Sigma-Aldrich

LUDOX® TM-50 colloidal silica

50 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:
24866349
NACRES:
NA.22

description

colloidal

Quality Level

200

form

viscous liquid

concentration

50 wt. % suspension in H2O

surface area

~140 m2/g

pH

9.0

density

1.4 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

LUDOX® TM-50 colloidal silica is an aqueous dispersion of silica particles with intermediate particle size and narrow particle size distribution.

Application

LUDOX® TM-50 colloidal silica can be used:
  • As a silica source to synthesize tetrapropylammonium(TPA)-silicate-1 colloidal particles.
  • As a removable template to prepare mesoporous carbon materials by using a resorcinol-formaldehyde resin as a carbon precursor.
  • As a separation layer to synthesize non-spherical flexible poly(butylacrylate) (PBA) polymer particles by concentrated emulsion polymerization.

Legal Information

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

Storage Class

12 - Non Combustible Liquids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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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Templating synthesis of non-spherical polymer particles and their effect on the fracture toughness of an epoxy-amine network.
Du Z, et al.
Polymer International, 56(1), 82-87 (2007)
Preparation of Pt supported on mesoporous carbons for the reduction of oxygen in polymer electrolyte membrane fuel cell (PEMFC).
Joo JB, et al.
Journal of electroceramics, 17(2-4), 713-718 (2006)
The synthesis of discrete colloidal particles of TPA-silicalite-1.
Persson AE, et al.
Zeolites, 14(7), 557-567 (1994)
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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