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442291

Sigma-Aldrich

Octadecylsilane

97%

Synonym(s):

Octadecyltrihydridosilane

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About This Item

Linear Formula:
CH3(CH2)17SiH3
CAS Number:
18623-11-5
Molecular Weight:
284.60
EC Number:
242-453-9
MDL number:
MFCD00039874
UNSPSC Code:
12352103
PubChem Substance ID:
24867783
NACRES:
NA.22

Assay

97%

bp

195 °C/15 mmHg (lit.)

mp

29 °C (lit.)

density

0.795 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCCCCCCCCCCC[SiH3]

InChI

1S/C18H40Si/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h2-18H2,1,19H3

InChI key

YTJSFYQNRXLOIC-UHFFFAOYSA-N

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General description

Octadecylsilane is an organosilicon compound that consists of a long-chain hydrocarbon (18 carbons) bonded to a silicon atom through a carbon-silicon bond. It is widely used in various applications due to its high surface activity, making it an excellent adsorbent for non-polar organic compounds. It is also used as a surface modifier or coating agent.

Application

Octadecylsilane can be used as a modifying agent for montmorillonite clay nanoparticles, which are used as a filler material in the synthesis of poly(methyl methacrylate) (PMMA)/silylated montmorillonite composites.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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