MilliporeSigma
All Photos(3)

104817

Sigma-Aldrich

Trichloro(octadecyl)silane

≥90%

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)

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

1 of 4

This Item
235725440213679305
refractive index

n20/D 1.459 (lit.)

refractive index

n20/D 1.447 (lit.)

refractive index

n20/D 1.417 (lit.)

refractive index

n20/D 1.417 (lit.)

bp

223 °C/10 mmHg (lit.)

bp

233 °C/731 mmHg (lit.)

bp

84-85 °C/0.5 mmHg (lit.)

bp

84-85 °C/0.5 mmHg (lit.)

density

0.984 g/mL at 25 °C (lit.)

density

1.07 g/mL at 25 °C (lit.)

density

0.88 g/mL at 25 °C (lit.)

density

0.88 g/mL at 25 °C (lit.)

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

vapor density

>1 (vs air)

vapor density

>1 (vs air)

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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