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Sigma-Aldrich

Dodecyltriethoxysilane

technical

Synonym(s):

1-(Triethoxysilyl)dodecane, Dodecyltriethoxysilane, Triethoxydodecylsilane

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About This Item

Empirical Formula (Hill Notation):
C18H40O3Si
CAS Number:
18536-91-9
Molecular Weight:
332.59
Beilstein/REAXYS Number:
2414223
EC Number:
242-409-9
MDL number:
MFCD00048437
UNSPSC Code:
12352103
PubChem Substance ID:
57650220
NACRES:
NA.23

grade

technical

form

liquid

density

0.875 g/mL at 20 °C (lit.)

SMILES string

CCCCCCCCCCCC[Si](OCC)(OCC)OCC

InChI

1S/C18H40O3Si/c1-5-9-10-11-12-13-14-15-16-17-18-22(19-6-2,20-7-3)21-8-4/h5-18H2,1-4H3

InChI key

YGUFXEJWPRRAEK-UHFFFAOYSA-N

General description

Dodecyltriethoxysilane (DTES) is an organosilane, which is used as a coupling agent. It forms alkylsiloxane based films that can be used to tune the wettability and facilitate a variety of surfaces with hydrophobicity.
Reaction between dodecene and triethoxysilane yields dodecyltriethoxysilane. 1

Application

A study reports the use of dodecyltriethoxysilane to form a silica nanofluid which alters the water contact angle of an oil-wet carbonate substrate. {68}
Dodecyltriethoxysilane can be used in the surface treatment of calcite crystals for the determination of the effect of wettability with the incorporation of nanoparticles. It may be electrodeposited with tetraethoxysilane, which can be used as an anti-corrosive coating on mild steel.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

230.0 °F - closed cup

flash_point_c

110 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

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Paso K, et al.
Journal of Colloid and Interface Science, 325(1), 228-235 (2008)
Corrosion protection of mild steel by one-step electrodeposition of superhydrophobic silica film.
Wu L, et al.
Corrosion Science, 85(1), 482-487 (2014)
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