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

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

Uses

1. Used in Surface Modification:
Triethoxyoctylsilane is used as a surface modifier to generate hydrophobicity on various materials such as concrete, glass, inorganic pigments, or mineral fillers. This property makes it useful for creating water-repellent surfaces and improving the durability and resistance of these materials against environmental factors.
2. Used in Water Repellent Products:
When diluted with an appropriate solvent, Triethoxyoctylsilane 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. This results in treated substrates becoming hydrophobic while retaining their original appearance.
3. Used in Solid-Stabilized Emulsions:
Triethoxy(octyl)silane is a hydrophobization agent used to limit coalescence in solid-stabilized emulsions. This application is particularly relevant in the chemical and pharmaceutical industries, where stable emulsions are crucial for various processes and formulations.
4. Used in Coatings and Sealants:
Due to its hydrophobic nature and ability to form a low surface energy coating, Triethoxyoctylsilane can be utilized in the development of coatings and sealants for various applications. These coatings can provide protection against water, stains, and other environmental factors, making them suitable for use in construction, automotive, and other industries where durable and long-lasting protection is required.

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

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Relevant articles and documents

THE PROCESS FOR THE PREPARATION AND USE OF HAIR TREATMENT COMPOSITIONS CONTAINING ORGANIC C1-C6 ALKOXY SILANES

The subject of the present application is a method for the preparation and use of an agent for the treatment of keratinous material, in particular human hair, comprising the following steps: (1) Mixing one or more organic C1-C6 alkoxy silanes with water,(2) optionally, partial, or complete removal from the reaction mixture of the C1-C6 alcohols liberated by the reaction in step (1),(3) if necessary, addition of one or more cosmetic ingredients,(4) Filling of the preparation into a packaging unit,(5) Storage of the preparation in the packaging unit for a period of at least about 5 days; and(6) Application of the preparation on the keratinous material.

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.

Platinum-Pyridine Schiff base complexes immobilized onto silica gel as efficient and low cost catalyst for hydrosilylation

A heterogeneous platinum catalyst with tridentate pyridine Schiff base ligands supported on silica gel is reported. The catalyst was fully characterized via FTIR, solid-state 13C NMR spectroscopy, X-ray photoelectron spectroscopy (XPS), N2 adsorption/desorption analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The catalyst showed potential application in mediating hydrosilylation reactions between olefins and hydrosilanes, and it can be reused for at least five cycles.

Cobalt bis(2-ethylhexanoate) and terpyridine derivatives as catalysts for the hydrosilylation of olefins

A simple method for the hydrosilylation of olefins by using air-stable cobalt catalysts is developed. The catalyst system is composed of simple, cheap, and readily available cobalt(II) salts and well-defined terpyridine derivatives as cocatalysts or ligands, and the hydrosilylation processes can be processed smoothly under mild conditions without either Grignard reagents or NaHBEt3 as activator.

Method of manufacturing organic silicon compound (by machine translation)

[Problem] to efficiently producing method of an organic silicon compound. The hydrosilane compounds in the presence of the catalyst in a reaction step [a] an alkene containing an organic silicon compound which, in the reaction process, the catalyst used is iron complex compound represented by the formula. R1 And R2 C each independently1 - C6 The hydrocarbon group, which may have a substituent C1 - C12 The aromatic hydrocarbon group, or a halogen atom, R3 C each independently1 - C12 Alkyl group, or a substituent which may be C6 - C12 The aromatic hydrocarbon group, X is independently a halogen atom, C1 - C12 Alkoxy, - OC (O) R6 (R6 C is1 - C12 The hydrocarbon group), or a trialkylsilyl group which may have a C1 - C12 Hydrocarbon group, is an integer of 0 - 4 n1, is an integer of 0 - 5 n2. [Drawing] no (by machine translation)

Platinum-Imidazolyl Schiff Base Complexes Immobilized in Periodic Mesoporous Organosilica Frameworks as Catalysts for Hydrosilylation

An imidazolyl Schiff base-containing periodic mesoporous organosilica (PMO) was synthesized via co-condensation reactions between a newly prepared bis (imidazolyl)imine-bridged bis silane and tetraethyl orthosilicate in the presence of cetyltrimethyl ammonium bromide as a soft template. The resultant as-synthesized PMO was then employed as a solid support for platinum catalysts. This complex was fully characterized via various techniques including FTIR, solid-state13C NMR, and 29Si-NMR spectroscopy, as well as N2 adsorption/desorption analysis, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) methods. In addition, the catalyst was proven to efficiently mediate hydrosilylation reactions between olefins and hydrosilanes, and it can be reused for at least five cycles without significant loss of activity.

Titanium-catalyzed hydrosilylation of olefins: A comparison study on Cp2TiCl2/Sm and Cp2TiCl2/LiAlH4 catalyst system

Hydrosilylation of olefins catalyzed by Cp2TiCl2/Sm (Cp = cyclopentadienyl) under solvent free conditions have been investigated. By using Cp2TiCl2/Sm as catalyst system, β-adducts and hydrogenation products were detected. Hydrosilylation of olefins catalyzed by Cp2TiCl2/LiAlH4 under room temperature has also been studied. The influence of TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) on Cp2TiCl2/Sm and Cp2TiCl2/LiAlH4, respectively, indicated that hydrosilylation of olefins catalyzed with Cp2TiCl2/Sm went through a free radical reaction pathway while a coordination mechanism was applied for Cp2TiCl2/LiAlH4 catalyst system.

The catalytic activity of alkali metal alkoxides and titanium alkoxides in the hydrosilylation of unfunctionalized olefins

The catalytic activities of titanium alkoxides and alkali metal alkoxides for hydrosilylation of unfunctionalized olefins have been studied. Titanium(IV) alkoxides showed excellent catalytic activity, while alkali metal alkoxides have low catalytic activity for the hydrosilylation of olefins. However, by using titanocene dichloride as an additive, alkali metal alkoxides showed also excellent catalytic property for hydrosilylation. In comparison with titanium alkoxides, no α-adduct was obtained by using alkali metal alkoxides/Cp2TiCl2 as catalysts.

Regiodivergent hydrosilylation, hydrogenation, [2π + 2π]-cycloaddition and C-H borylation using counterion activated earth-abundant metal catalysis

The widespread adoption of earth-abundant metal catalysis lags behind that of the second- and third-row transition metals due to the often challenging practical requirements needed to generate the active low oxidation-state catalysts. Here we report the development of a single endogenous activation protocol across five reaction classes using both iron- and cobalt pre-catalysts. This simple catalytic manifold uses commercially available, bench-stable iron- or cobalt tetrafluoroborate salts to perform regiodivergent alkene and alkyne hydrosilylation, 1,3-diene hydrosilylation, hydrogenation, [2π + 2π]-cycloaddition and C-H borylation. The activation protocol proceeds by fluoride dissociation from the counterion, in situ formation of a hydridic activator and generation of a low oxidation-state catalyst.