376221

Sigma-Aldrich

Trimethoxy(octyl)silane

96%

Synonym(s):
Octyltrimethoxysilane
Linear Formula:
CH3(CH2)7Si(OCH3)3
CAS Number:
Molecular Weight:
234.41
Beilstein/REAXYS Number:
1926957
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

96%

refractive index

n20/D 1.416 (lit.)

density

0.907 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCC[Si](OC)(OC)OC

InChI

1S/C11H26O3Si/c1-5-6-7-8-9-10-11-15(12-2,13-3)14-4/h5-11H2,1-4H3

InChI key

NMEPHPOFYLLFTK-UHFFFAOYSA-N

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General description

Trimethoxy(octyl)silane is an organosilane. The effect of hydrolyzed silane on the penetration of water into a lamellar liquid crystal was studied.
Trimethoxy(octyl)silane (TMOS) is an organosilane that is used as a coupling and surface modifying agent to enhance the water contact angle and lower the surface energy.

Application

Trimethoxy(octyl)silane (TMOS) is used to functionalize the surface of silica to promote the adhesion with gold nanoparticles (AuNPs) for use in the fabrication of acrylate nanocomposite based photonic devices. It can be coated on silica fiber based epoxy to improve the hydrophobic characteristics and to protect the surface from corrosion.
Trimethoxy(octyl)silane was used for the silanization of silica nanoparticles. Surface modification of hydrophobic (T805) titania particles with the silane was reported.

Packaging

25 mL in glass bottle

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

hazcat

Acute Tox. 3 Inhalation - Skin Irrit. 2

storage_class_code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK Germany

WGK 1

Flash Point(F)

203.0 °F - closed cup

Flash Point(C)

95 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Controlled synthesis of hierarchical ZSM-5 for catalytic fast pyrolysis of cellulose to aromatics.
Chen H, et al.
Journal of Material Chemistry A, 6(42), 21178-21185 (2018)
Decorated fibrous silica epoxy coating exhibiting anti-corrosion properties.
Fihri A, et al.
Progress in Organic Coatings, 127(42), 110-116 (2019)
Optical recording in functional polymer nanocomposites by multi-beam interference holography.
Holography: Advances and Modern Trends V, 10233(42), 102331Y-102331Y (2017)
Self-cleaning superhydrophobic epoxy coating based on fibrous silica-coated iron oxide magnetic nanoparticles.
Alamri H, et al.
Journal of Colloid and Interface Science, 513(42), 349-356 (2018)
Silica/polyethylene nanocomposite particles from catalytic emulsion polymerization.
Macromolecules, 39(6), 2056-2062 (2006)

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