CAS 5157-75-5

Octadecilmetildiclorossilano

Descrição:

Octadecilmetildiclorossilano, com o número CAS 5157-75-5, é um composto organossilícico caracterizado por sua longa cadeia alquílica hidrofóbica, que consiste em 18 átomos de carbono. Essa estrutura confere propriedades hidrofóbicas significativas, tornando-o útil como modificador de superfície em várias aplicações, incluindo revestimentos e adesivos. A presença de grupos funcionais de diclorossilano permite a formação de ligações siloxano com superfícies, melhorando a adesão e proporcionando características repelentes à água. Normalmente, aparece como um líquido incolor a amarelo pálido e tem uma volatilidade relativamente baixa. Sua reatividade se deve principalmente aos grupos de clorosilano, que podem hidrolisar na presença de umidade, levando à formação de grupos silanol e subsequente polimerização. Este composto é frequentemente utilizado na modificação de sílica e outras superfícies inorgânicas para melhorar sua compatibilidade com materiais orgânicos. Precauções de segurança devem ser tomadas ao manusear esta substância, pois pode ser corrosiva e pode representar riscos à saúde se inalada ou em contato com a pele.

Fórmula: C₁₉H₄₀Cl₂Si

InChI: InChI=1S/C19H40Cl2Si/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-22(2,20)21/h3-19H2,1-2H3

Chave InChI: InChIKey=GYWBHBXGYTYXRG-UHFFFAOYSA-N

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

Sinónimos:

• Ai3-60187
• Dichloromethylstearylsilane
• Methyloctadecyldichlorosilane
• N-octadecylmethyldichlorosilane
• NSC 96645
• Octadecyldichloromethylsilane
• Octadecylmethyldichlorosilane
• Silane, dichloromethyloctadecyl-
• Stearylmethyldichlorosilane
• Dichloromethyloctadecylsilane
• Dichloromethyloctadecylsilane

DICHLORO-METHYL-OCTADECYLSILANE

CAS: 5157-75-5

Fórmula: C₁₉H₄₀Cl₂Si

Pureza: %

Peso molecular: 367.5124

Ref: IN-DA003PDT

Dichloro(Methyl)(Octadecyl)Silane

CAS: 5157-75-5

Dichloro(Methyl)(Octadecyl)Silane

Pureza: 99%

Peso molecular: 367.51g/mol

Ref: 54-OR1029957

Dichloro(methyl)octadecylsilane

CAS: 5157-75-5

Fórmula: C₁₉H₄₀Cl₂Si

Pureza: >94.0%(GC)

Cor e Forma: White or Colorless to Almost white or Almost colorless powder to lump to clear liquid

Peso molecular: 367.51

Ref: 3B-O0264

Methyl-n-octadecyldichlorosilane

CAS: 5157-75-5

Pureza: 95%

Cor e Forma: Solid, Low Melting Solid

Peso molecular: 367.510009765625

Ref: 10-S11425

n-OCTADECYLMETHYLDICHLOROSILANE

CAS: 5157-75-5

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-Octadecylmethyldichlorosilane; Dichloromethyl-n-octadecylsilane; Methyldichlorosilyloctadecane; Dichloromethylsilyloctadecane
Contains 5-10% C18 isomersViscosity: 7 cSt

Fórmula: C₁₉H₄₀Cl₂Si

Pureza: 97% including isomers

Cor e Forma: Straw Liquid

Peso molecular: 367.52

Ref: 3H-SIO6625.0

Dichloro(methyl)octadecylsilane

CAS: 5157-75-5

Dichloro(methyl)octadecylsilane is a liquid that is used to coat the inside of tubes in chromatographic columns. The coating ensures that the stationary phase (the material on which the analyte travels) remains stationary and is not carried away with the mobile phase. It has been shown to be effective at removing hydrogen chloride from water and can be used as a fabricating agent for coatings. Dichloro(methyl)octadecylsilane is used in analytical chemistry, where it has been shown to have a number of uses including being able to remove hydroxy groups from molecules and electron microscopy, where it can be used as a coating for nonpolar solvents.

Pureza: Min. 95%

Ref: 3D-FD62732

n-OCTADECYLMETHYLDICHLOROSILANE, 97%

CAS: 5157-75-5

Fórmula: C₁₉H₄₀Cl₂Si

Pureza: 97% including isomers

Cor e Forma: Straw Liquid

Peso molecular: 367.52

Ref: 3H-SIO6625.1