CAS 112-04-9

Trichlorooctadecylsilane

Description:

Trichlorooctadecylsilane, with the CAS number 112-04-9, is an organosilicon compound characterized by its long hydrophobic octadecyl chain and three chlorine substituents attached to a silicon atom. This compound typically appears as a colorless to pale yellow liquid and is known for its low volatility and high stability under various conditions. It is primarily used as a silane coupling agent, enhancing the adhesion of organic materials to inorganic substrates, which is particularly valuable in coatings, sealants, and adhesives. The presence of the octadecyl chain imparts hydrophobic properties, making it effective in water-repellent applications. Additionally, the chlorinated nature of the compound allows for further chemical reactivity, enabling it to bond with various surfaces. Trichlorooctadecylsilane is also utilized in the modification of surfaces to improve their compatibility with organic materials, thereby enhancing performance in various industrial applications. Safety precautions should be observed when handling this compound, as it can be hazardous due to its reactive chlorine atoms.

Formula: C₁₈H₃₇Cl₃Si

InChI: InChI=1S/C18H37Cl3Si/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-22(19,20)21/h2-18H2,1H3

InChI key: InChIKey=PYJJCSYBSYXGQQ-UHFFFAOYSA-N

SMILES: C(CCCCCCCCCCCCCCC)CC[Si](Cl)(Cl)Cl

Synonyms:

• Ls 6495
• Nsc 96644
• OTS
• OTS (silane derivative)
• Octadecyltrichlorosilane
• Silane, Octadecyltrichloro-
• Stearyltrichlorosilane
• Trichlor(octadecyl)silan
• Trichloro(octadecyl)silane
• Trichlorooctadecylsilane
• Tricloro(Octadecil)Silano
• n-Octadecyltrichlorosilane

Trichlorooctadecylsilane

CAS: 112-04-9

Formula: C₁₈H₃₇Cl₃Si

Purity: >85.0%(GC)

Color and Shape: White or Colorless to Light yellow powder to lump to clear liquid

Molecular weight: 387.93

Ref: 3B-O0079

Trichlorooctadecylsilane (>99.0%)

CAS: 112-04-9

Formula: C₁₈H₃₇Cl₃Si

Purity: >99.0%(GC)

Color and Shape: Colorless to Almost colorless clear liquid

Molecular weight: 387.93

Ref: 3B-T3815

n-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers

CAS: 112-04-9

n-Octadecyltrichlorosilane is used in semiconductor industry to form self-assembled monolayer thin films on silicon dioxide substrates. Used in molecular electronics, as thin insulating gates in Metal-Insulator-Semiconductor Field-Effect Transistors. It is also used in platinum catalyzed synthesis.

Formula: C₁₈H₃₇Cl₃Si

Purity: 95%

Color and Shape: Colorless to pale yellow to yellow-brown or pale brown, Clear to slightly hazy liquid

Molecular weight: 387.93

Ref: 02-A15732

n-OCTADECYLTRICHLOROSILANE, 97%

CAS: 112-04-9

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-Octadecyltrichlorosilane; OTS; Trichlorosilyloctadecane; Trichlorooctadecylsilane
Contains <5% C18 isomersProvides lipophilic surface coatingsEmployed in patterning and printing of electroactive molecular filmsImmobilizes physiologically active cell organellesTreated substrates increase electron transport of pentacene filmsHighest concentration of terminal silane substitution

Formula: C₁₈H₃₇Cl₃Si

Purity: 97% including isomers

Color and Shape: Straw Liquid

Molecular weight: 387.93

Ref: 3H-SIO6640.1

n-OCTADECYLTRICHLOROSILANE

CAS: 112-04-9

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-Octadecyltrichlorosilane; OTS; Trichlorosilyloctadecane; Trichlorooctadecylsilane
Contains 5-10% C18 isomersProvides lipophilic surface coatingsEmployed in patterning and printing of electroactive molecular filmsImmobilizes physiologically active cell organellesTreated substrates increase electron transport of pentacene films

Formula: C₁₈H₃₇Cl₃Si

Purity: 97% including isomers

Color and Shape: Straw Liquid

Molecular weight: 387.93

Ref: 3H-SIO6640.0

n-Octadecyltrichlorosilane (>90%)

Controlled Product

CAS: 112-04-9

Stability Moisture Sensitive
Applications n-Octadecyltrichlorosilane (cas# 112-04-9) is a useful research chemical.
E0

Formula: C₁₈H₃₇Cl₃Si

Purity: >90%

Color and Shape: Neat

Molecular weight: 387.93

Ref: TR-O148565

Trichlorooctadecylsilane

CAS: 112-04-9

Trichlorooctadecylsilane is a model system that consists of a monolayer of octadecyltrichlorosilane particles. The dispersive solid-phase extraction technique can be used to extract analytes from the surface of this particle. This technique involves removing the solvent from a sample by passing it through an adsorbent. The hydrophobic effect, which is the phenomenon that a nonpolar substance is dissolved in a nonpolar solvent, will cause analytes to bind to the hydrophobic surface of octadecyltrichlorosilane particles because they are hydrophobic.

Purity: Min. 95%

Ref: 3D-FT62929

n-Octadecyltrichlorosilane

CAS: 112-04-9

S12250 - n-Octadecyltrichlorosilane

Formula: C₁₈H₃₇Cl₃Si

Purity: 95%

Color and Shape: Liquid, Clear

Molecular weight: 387.92999267578125

Ref: 10-S12250