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104817

Sigma-Aldrich

Trichloro(octadecyl)silane

≥90%

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Synonym(s):
Octadecyltrichlorosilane
Linear Formula:
CH3(CH2)17SiCl3
CAS Number:
Molecular Weight:
387.93
Beilstein:
1778847
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

vapor density

>1 (vs air)

vapor pressure

<5 mmHg ( 20 °C)

Assay

≥90%

refractive index

n20/D 1.459 (lit.)

bp

223 °C/10 mmHg (lit.)

density

0.984 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl

InChI

1S/C18H37Cl3Si/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-22(19,20)21/h2-18H2,1H3

InChI key

PYJJCSYBSYXGQQ-UHFFFAOYSA-N

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This Item
281778376213376221
bp

223 °C/10 mmHg (lit.)

bp

91-92 °C/15 mmHg (lit.)

bp

-

bp

-

density

0.984 g/mL at 25 °C (lit.)

density

1.027 g/mL at 25 °C (lit.)

density

0.883 g/mL at 25 °C (lit.)

density

0.907 g/mL at 25 °C (lit.)

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

vapor density

>1 (vs air)

vapor density

-

vapor density

-

vapor density

-

vapor pressure

<5 mmHg ( 20 °C)

vapor pressure

-

vapor pressure

-

vapor pressure

-

General description

Self-assembled monolayers (SAMs) are used as passivating layers and for controlled modification of surface properties of substrates. Their main applications include wetting, adhesion, friction, chemical sensing and ultra-fine scale lithography. Alkytrichlorosilanes are commonly used for synthesising SAMs on Silicon dioxide which are commonly used in microelectronics. Trichloro(octadecyl)silane is a widely used alkyltrichlorosilane.
Trichloro(octadecyl)silane (OTS) is an alkoxy silane with a large alkyl and polar head group, mainly used as a self-assembled monolayer (SAM) on a variety of nanoparticles and metal oxides substrates. It provides an amphiphilic character that can be used in molecular and opto-electronics applications.

Application

OTS can be used to silanize poly(vinylalcohol) (PVA)/nanosilica (SiO2) nanofibers that can provide a hydrophobic coating on the wooden surfaces by electrospinning. It can also be used as a SAM on the surface of silica (SiO2) gate dielectric for the development of organic field effect transistor (OFETs). It may also be used in a variety of applications like improving the electrochemical performance for dye sensitized solar cells and for the development of metal insulated field effect transistors.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

404.6 °F - closed cup

Flash Point(C)

207 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Structural evaluation of 5, 5'-bis (naphth-2-yl)-2, 2'-bithiophene in organic field-effect transistors with n-octadecyltrichlorosilane coated SiO2 gate dielectric.
Ejdrup A, et al.
Langmuir, 34 (23), 6727?6736-6727?6736 (2018)
Fabrication and Characterization of Flexible Metal-Insulator-Semiconductor Field Effect Transistor (MISFET) using Organic ODS and Inorganic ZrO2 as Dielectric Stack Materials.
Haridas PP, et al.
International Journal of Trend in Research and Development, 4, 2394-2394 (2017)
Wenlong Jin et al.
Nature communications, 9(1), 3586-3586 (2018-09-06)
Organic materials are emerging thermoelectric candidates for flexible power generation and solid-cooling applications. Although the Peltier effect is a fundamental thermoelectric effect that enables site-specific and on-demand cooling applications, the Peltier effect in organic thermoelectric films have not been investigated. Here we
Mark Ilton et al.
Nature communications, 9(1), 1172-1172 (2018-03-23)
Hydrodynamic slip, the motion of a liquid along a solid surface, represents a fundamental phenomenon in fluid dynamics that governs liquid transport at small scales. For polymeric liquids, de Gennes predicted that the Navier boundary condition together with polymer reptation
Coating of wood by means of electrospun nanofibers based on PVA/SiO2 and its hydrophobization with octadecyltrichlorosilane (OTS).
Kumar A, et al.
Holzforschung, 71(3), 225-231 (2017)

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