2943-75-1

Basic information

• Product Name: Triethoxyoctylsilane
• Synonyms: a137(couplingagent);CO9835;Dynasylan OCTEO;dynasylanocteo;n-octyltriethoaysilane(30m3);n-octyltriethoaysilane(30m35);n-octyltriethoaysilane(30m3m);n-octyltriethoaysilane(32m18)
• CAS NO: 2943-75-1
• Molecular Formula: C₁₄H₃₂O₃Si
• Molecular Weight: 276.49
• EINECS: 220-941-2
• Product Categories: Alkyl;Functional Materials;Si (Classes of Silicon Compounds);Silane Coupling Agents;Silane Coupling Agents (Intermediates);Si-O Compounds;Trialkoxysilanes;Alkoxy Silanes;Hydrophobing Agents;silane
• Mol File: 2943-75-1.mol
• Article Data: 64

Chemical Properties

• Melting Point: <-40°C
• Boiling Point: 84-85 °C0.5 mm Hg(lit.)
• Flash Point: 210 °F
• Appearance: colorless transparent liquid
• Density: 0.88 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.137mmHg at 25°C
• Refractive Index: n20/D 1.417(lit.)
• Storage Temp.: Store below +30°C.
• Solubility: Acetonitrile (Slightly), Chloroform (Slightly)
• Water Solubility: reacts
• Sensitive: Moisture Sensitive
• BRN: 2325287
• CAS DataBase Reference: Triethoxyoctylsilane(CAS DataBase Reference)
• NIST Chemistry Reference: Triethoxyoctylsilane(2943-75-1)
• EPA Substance Registry System: Triethoxyoctylsilane(2943-75-1)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-37/39
• WGK Germany: 1
• RTECS: VV6695500
• F: 10-21
• TSCA: Yes
• Hazardous Substances Data: 2943-75-1(Hazardous Substances Data)

Usage

Description

Triethoxyoctylsilane is a monomeric medium-chain alkylfunctional silane. It is a clear colourless liquid and soluble in common non-polar organic solvent. Triethoxyoctylsilane can be used as a surface modifier to generate hydrophobicity (e.g. on concrete, glass, inorganic pigments, or mineral fillers). When diluted with an appropriate solvent, it can be used in the formulation of water repellent products. Upon proper application, the formulated product will penetrate and provide water repellency by chemically reacting with the cementitious substrate. Treated substrates are hydrophobic and retain their original appearance.

Chemical Properties

Colorless transparent liquid

Uses

Triethoxy(octyl)silane is a hydrophobization agent used to limit coalescence in solid-stabilized emulsions.

General Description

Triethoxy(octyl)silane (TEOS) is an alkoxide organosilane with four ethyl ester sidechains. It is used as a self-assembled monolayer and provides a hydrophobic coating with low surface energy. The water contact angle is in the range of 150-170°.

InChI:InChI=1/C14H32O3Si/c1-5-9-10-11-12-13-14-18(15-6-2,16-7-3)17-8-4/h5-14H2,1-4H3

Upstream product

• 111-66-0 oct-1-ene 
• 998-30-1 Triethoxysilane 
• 13389-42-9 trans-2-Octene 
• 597-52-4 Triethylsilanol 
• 64-17-5 ethanol 
• 5283-66-9 octyltrichlorosilane 
• 78-10-4 tetraethoxy orthosilicate 
• 38841-98-4 n-octylmagnesium chloride 

Downstream Products

• 762-04-9 phosphonic acid diethyl ester 
• 1620205-88-0 N'-methyl-N'-phenyloctane-1-sulfonohydrazide 
• 1620205-87-9 N'-benzyl-N'-phenyloctane-1-sulfonohydrazide 
• 1185275-65-3 octylsilicic acid tris(2-phenylethyl) ester 
• 67007-46-9 n-octylsilatrane 
• 111-83-1 1-bromo-octane 
• 357933-40-5 ethyl (2-benzyloxycarbonyl-ethyl)phosphinate 
• 871-92-1 trihydrogeno(octyl)silane 
• 111-87-5 octanol 

Relevant articles and documents

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TWO-COMPONENT SYSTEM FOR SMOOTHING AND CARE OF HAIR

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Efficient magnetically separable heterogeneous platinum catalyst bearing imidazolyl schiff base ligands for hydrosilylation

Reported herein is a magnetically separable heterogeneous nano catalyst Fe3O4@SiO2-biIMI- PtCl2, which is prepared by firstly applying a SiO2 coating onto readily synthesized magnetite nanoparticles via the hydrolysis condensation of tetraethyl orthosilicate (TEOS) under basic conditions, then modifying it using aminopropyl triethoxysilane and bis(imidazole) aldehyde, and finally incorporating a PtCl2 complex via coordination chemistry. The chemical structure and morphology of the nanocatalyst as well as the valence state and content of platinum within this catalyst were carefully characterized. This catalyst can mediate the hydrosilylation between 1-octene and hydrosilane, with the conversion of 1-octene reaching up to 99%, and it shows good regioselectivity as only β-adducts are identified. In addition, this catalyst can be reused for at least 5 cycles. The hydrosilylation reaction between different olefins and hydrosilanes can also be efficiently mediated by Fe3O4@SiO2-biIMI-PtCl2.