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Merck
CN

440213

Triethoxy(octyl)silane

97%

Synonym(s):

Octyltriethoxysilane

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About This Item

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

Key Documents

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Product Name

Triethoxy(octyl)silane, 97%

InChI key

MSRJTTSHWYDFIU-UHFFFAOYSA-N

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

SMILES string

CCCCCCCC[Si](OCC)(OCC)OCC

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.)

Quality Level

100

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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.

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°.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315

Hazard Classifications

Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW9797
MKCV3480
MKCQ4447
MKCM7970
SHBJ4582

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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.
A colorimetric sensor array of porous pigments.
Lim H, et al.
Analyst, 134(12), 2453-2457 (2009)
A colorimetric sensor array of porous pigments
Analyst, 134(12), 2453-2457 (2009)
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)
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