Skip to Content
MilliporeSigma
All Photos(1)

Documents

440213

Sigma-Aldrich

Triethoxy(octyl)silane

97%

Synonym(s):

Octyltriethoxysilane

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
CH3(CH2)7Si(OC2H5)3
CAS Number:
2943-75-1
Molecular Weight:
276.49
Beilstein/REAXYS Number:
2325287
EC Number:
220-941-2
MDL number:
MFCD00039883
UNSPSC Code:
12352103
PubChem Substance ID:
24867577
NACRES:
NA.23

assay

97%

form

liquid

refractive index

n20/D 1.417 (lit.)

bp

84-85 °C/0.5 mmHg (lit.)

density

0.88 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCC[Si](OCC)(OCC)OCC

InChI

1S/C14H32O3Si/c1-5-9-10-11-12-13-14-18(15-6-2,16-7-3)17-8-4/h5-14H2,1-4H3

InChI key

MSRJTTSHWYDFIU-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Triethoxy(octyl)silane (TEOS) is an alkoxide organosilane with four ethyl ester sidechains. It is used as a self-assembled monolayer and provides a hydrophobic coating with low surface energy. The water contact angle is in the range of 150-170°.

Application

Aluminium alloy can be coated with TEOS and 1H, 1H, 2H, 2H perfluorooctyl trichloro silane (PFOTS) to obtain superhydrophobicity with a high contact angle of 160-170° for vessel hulls and marine systems. It may be used to stabilize the porosity for a colorimetric sensor for immediate color changes, which finds potential application in the detection of toxic gases. It may also be used in the production of hybrid zeolites.
Triethoxy(octyl)silane may be used to prepare several formulations for fabricating low-cost, colorimetric sensor arrays to detect toxic gases.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315

Hazard Classifications

Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

212.0 °F - closed cup

flash_point_c

100 °C - closed cup

ppe

Eyeshields, Gloves, 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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Synthesis of hybrid zeolites using a solvent-free method in the presence of different organosilanes.
Petkowicz I, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 241(12), 98-106 (2017)
Robust multifunctional superhydrophobic coatings with enhanced water/oil separation, self-cleaning, anti-corrosion, and anti-biological adhesion.
Cho E, et al.
Chemical Engineering Journal, 314, 347-357 (2017)
A colorimetric sensor array of porous pigments
Analyst, 134(12), 2453-2457 (2009)
Fabrication of Superhydrophobic Al5083 Aluminum Alloy for Marine Applications.
Javad F, et al.
Protection of Metals and Physical Chemistry of Surfaces, 54(5), 899-908 (2018)
Danielle R Scheff et al.
Soft matter, 16(24), 5659-5668 (2020-06-11)
Macromolecules can phase separate to form liquid condensates, which are emerging as critical compartments in fields as diverse as intracellular organization and soft materials design. A myriad of macromolecules, including the protein FUS, form condensates which behave as isotropic liquids.
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service