CAS 2943-75-1

Octyltriethoxysilane

Description:

Octyltriethoxysilane, with the CAS number 2943-75-1, is an organosilicon compound characterized by its silane structure, which includes an octyl group and three ethoxy groups attached to a silicon atom. This compound is typically a colorless to pale yellow liquid and is known for its hydrophobic properties, making it useful as a surface modifier and coupling agent. Octyltriethoxysilane can enhance the adhesion of organic materials to inorganic substrates, such as glass and metals, by forming a siloxane bond upon hydrolysis and condensation. It is often employed in applications such as coatings, sealants, and adhesives, where improved water repellency and durability are desired. Additionally, it can be used in the formulation of silicone-based materials and as a precursor in the synthesis of silica nanoparticles. Safety considerations include handling it in well-ventilated areas and using appropriate personal protective equipment, as it can be irritating to the skin and eyes.

Formula: C₁₄H₃₂O₃Si

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

InChI key: InChIKey=MSRJTTSHWYDFIU-UHFFFAOYSA-N

SMILES: [Si](CCCCCCCC)(OCC)(OCC)OCC

Synonyms:

• (Octyl)-triethoxysilane
• 1-(Triethoxysilyl)octane
• A 137
• A 137 (coupling agent)
• Aes 3083
• Caprylyltriethoxysilane
• Db 8830
• Dynasylan OCTEO
• Elotex Seal 80
• Emi 1831
• Enviroseal 40
• Kbe 3083
• Kh 350
• Kh 832
• L 04407
• Lm-N 308
• Nsc 42964
• O 9835
• Octyl(triethoxy)silane
• Octyltriethoxysilane
• Ofs 6341
• Penta 818
• Prosil 9202
• Prosil 9234
• Si 208
• Si 208 (coupling agent)
• Silane, triethoxyoctyl-
• Silquest 06715.0
• Silquest A 137
• Silres BS 1601
• Sm 008
• Triethoxy(octyl)silane
• Triethoxycaprylylsilane
• Triethoxyoctyl silane
• Triethoxyoctylsilan
• Triethoxyoctylsilane
• Trietoxioctilsilano
• U 222
• VP-Si 208
• Xiameter OFS 6341
• Xiameter OFS 6595
• Y 9187
• Z 6341
• n-Octyl triethoxysilane
• n-Octyltriethoxysilane
• n-octyltriethoaysilane(30m3m)
• TRIETHOXY-N-OCTYLSILANE
• n-octyltriethoaysilane(30m3)
• prosil9234
• n-octyltriethoaysilane(32m18)
• TRIETHOXY-OCTYLSILANE
• prosil9202
• dynasylanocteo
• Triethoxy-n-octyltriethoxysilane
• silquesta137
• CO9835
• a137(couplingagent)
• n-octyltriethoaysilane(30m35)

n-Octyltriethoxysilane, 95%

CAS: 2943-75-1

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Formula: C₁₄H₃₂O₃Si

Purity: 95%

Color and Shape: Clear colorless, Liquid

Molecular weight: 276.49

Ref: 02-L04407

TRIETHOXYOCTYLSILANE

CAS: 2943-75-1

Formula: C₁₄H₃₂O₃Si

Purity: 97%

Color and Shape: Liquid

Molecular weight: 276.4876

Ref: IN-DA002YD7

Octyltriethoxysilane

CAS: 2943-75-1

Octyltriethoxysilane

Purity: 97%

Molecular weight: 276.49g/mol

Ref: 54-OR97840

Triethoxyoctylsilane

CAS: 2943-75-1

Triethoxyoctylsilane

Purity: ≥95%

Molecular weight: 276.49g/mol

Ref: 54-BUP19736

Triethoxy-n-octylsilane

CAS: 2943-75-1

Formula: C₁₄H₃₂O₃Si

Purity: >97.0%(GC)

Color and Shape: Colorless to Almost colorless clear liquid

Molecular weight: 276.49

Ref: 3B-O0171

Triethoxyoctylsilane

CAS: 2943-75-1

Triethoxyoctylsilane (NSC 42964), an organosilane, forms micelles; used in plastics.

Formula: C₁₄H₃₂O₃Si

Purity: 97.55%

Color and Shape: Colorless Transparent Liquid

Molecular weight: 276.49

Ref: TM-T19734

Triethoxy(octyl)silane

Controlled Product

CAS: 2943-75-1

Applications Triethoxy(octyl)silane is a hydrophobization agent used to limit coalescence in solid-stabilized emulsions.
References Arditty, S., et al.: Eur. Phys. J. E, 11, 273 (2003);

Formula: C₁₄H₃₂O₃Si

Color and Shape: Neat

Molecular weight: 276.49

Ref: TR-T773455

Gelest Titanium Dioxide TC

CAS: 13463-67-7, 2943-75-1

Color and Shape: White Solid

Ref: 3H-WIA-TCA

Gelest Yellow Iron Oxide TC

CAS: 2943-75-1, 51274-00-1

Color and Shape: Yellow Solid

Molecular weight: 0.0

Ref: 3H-YIA-TCA

n-OCTYLTRIETHOXYSILANE, 98%

CAS: 2943-75-1

Alkyl Silane - Conventional Surface Bonding
Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.
n-Octyltriethoxysilane; Triethoxysilyloctane
Viscosity: 1.9 cStVapor pressure, 75 °C: 1 mmWidely used in architectural hydrophobationSurface treatment for pigments in cosmetic vehicles and compositesMay be formulated to stable water emulsionsSuppresses nucleation behavior in ZnO-polylactic acid compositesTrialkoxy silane

Formula: C₁₄H₃₂O₃Si

Purity: 97.5%

Color and Shape: Straw Liquid

Molecular weight: 276.48

Ref: 3H-SIO6715.0

Gelest Black Iron Oxide TC

CAS: 1317-61-9, 2943-75-1

Color and Shape: Black Solid

Ref: 3H-BIA-TCA

Gelest Talc TC

CAS: 1318-59-8, 14807-96-6, 2943-75-1

Color and Shape: White To Off-White Solid

Ref: 3H-TA7-TCA

Gelest Red Iron Oxide TC

CAS: 1309-37-1, 2943-75-1

Color and Shape: Red To Reddish Brown Solid

Ref: 3H-RIA-TCA

Gelest Sericite TC

CAS: 12001-26-2, 2943-75-1

Color and Shape: White To Off-White Solid

Ref: 3H-SAA-TCA

n-Octyltriethoxysilane

CAS: 2943-75-1

S12775 - n-Octyltriethoxysilane

Formula: C₁₄H₃₂O₃Si

Purity: 97%

Color and Shape: Liquid, Clear

Molecular weight: 276.492

Ref: 10-S12775