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Ethoxytrimethylsilane

Name: Ethoxytrimethylsilane
Brand: ALDRICH

98%

Synonym(s):

Trimethylethoxysilane

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About This Item

Linear Formula:

C₂H₅OSi(CH₃)₃

CAS Number:

1825-62-3

Molecular Weight:

118.25

UNSPSC Code:

12352103

NACRES:

NA.23

PubChem Substance ID:

24855380

EC Number:

217-370-6

Beilstein/REAXYS Number:

1731950

MDL number:

MFCD00009069

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Properties

assay

98%

form

liquid

refractive index

n20/D 1.374 (lit.)

bp

75-76 °C (lit.)

density

0.757 g/mL at 25 °C (lit.)

SMILES string

CCO[Si](C)(C)C

InChI

1S/C5H14OSi/c1-5-6-7(2,3)4/h5H2,1-4H3

InChI key

RSIHJDGMBDPTIM-UHFFFAOYSA-N

Description

General description

Sodium acetylacetonate reacts with dichloro trimethylsiloxyaluminium to form ethoxytrimethylsilane.{70} Ethoxytrimethylsilane reacts with alkali ions to form Si-O-M (M: alkali metal) linkage, which was investigated in detail by 29Si NMR.1

Ethoxytrimethylsilane (ETMS) is an alkoxysilane that is used as a capping agent, which can tune the hydrophobic properties for a variety of substrates by coupling with the surface hydroxyl groups.

Application

ETMS can be used to modify the silica nanoparticles to form a hydrophobic coating with ultra-high molecular weight polyethylene on the surface of the steel. It may be used to methylate silica nanoparticles that form silica nano-capsules for stabilized oil-in water emulsions.

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pictograms

GHS02

signalword

Danger

hcodes

H225

pcodes

P210 - P233 - P240 - P241 - P242 - P243

Hazard Classifications

Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

-3.1 °F - closed cup

flash_point_c

-19.5 °C - closed cup

ppe

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 1 petroleums + Hazardous rank II + Water insoluble liquid

fsl

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Articles

Single-Electron Oxidation Transformations

Review SET mechanism in photoredox catalysis for sustainable reactions and rearrangement of oxaziridines.

Electron Moments and Structures of Organosilicon Compounds. III. The Oxygen-Silicon Bond^{1, 2}.

Freiser H, et al.

Journal of the American Chemical Society, 75(12), 2824-2827 (1953)

Part I. Dichloro-and dibromotrimethylsiloxyaluminium: structure, and reaction with sodium acetylacetonate.

Ercolani CA, et al.

Journal of the Chemical Society, 603-605 (1966)

Surface chemistry and trimethylsilyl functionalization of Stober silica sols.

Suratwala TI, et al.

Journal of Non-Crystalline Solids, 316(2), 349-363 (2003)

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