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Merck
CN

104817

Trichloro(octadecyl)silane

≥90%

Synonym(s):

Octadecyltrichlorosilane

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About This Item

Linear Formula:
CH3(CH2)17SiCl3
CAS Number:
112-04-9
Molecular Weight:
387.93
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
24846677
EC Number:
203-930-7
Beilstein/REAXYS Number:
1778847
MDL number:
MFCD00000484

Key Documents

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Product Name

Trichloro(octadecyl)silane, ≥90%

InChI key

PYJJCSYBSYXGQQ-UHFFFAOYSA-N

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

SMILES string

CCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl

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.)

Quality Level

100

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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.

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.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

404.6 °F - closed cup

flash_point_c

207 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
0000516025
0000516025
0000513294
0000513293
0000457977

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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
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)
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)
Surface Characteristics of Silicon Nanowires/Nanowalls Subjected to Octadecyltrichlorosilane Deposition and n-octadecane Coating.
Yilbas BS, et al.
Scientific reports, 6, 38678-38678 (2016)
Atul S M Tripathi et al.
ACS applied materials & interfaces, 11(31), 28088-28095 (2019-07-17)
Large area (>20 cm × 2 cm)-oriented thin films of PQT-C12 with varying molecular weight and polydispersity index (PDI) were fabricated by the ribbon-shaped floating film transfer method aiming toward their application as an active semiconductor element of organic field
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