CAS 5157-75-5

Ottadecilmetildiclorosilano

Descrizione:

Ottadecilmetildiclorosilano, con il numero CAS 5157-75-5, è un composto organosiliconico caratterizzato dalla sua lunga catena alchilica idrofobica, che consiste di 18 atomi di carbonio. Questa struttura conferisce proprietà idrofobiche significative, rendendolo utile come modificatore di superficie in varie applicazioni, tra cui rivestimenti e adesivi. La presenza di gruppi funzionali di diclorosilano consente la formazione di legami silossanici con le superfici, migliorando l'adesione e fornendo caratteristiche idrorepellenti. Tipicamente, appare come un liquido incolore a giallo pallido e ha una volatilità relativamente bassa. La sua reattività è principalmente dovuta ai gruppi di clorosilano, che possono idrolizzarsi in presenza di umidità, portando alla formazione di gruppi silanoli e successiva polimerizzazione. Questo composto è spesso utilizzato nella modifica della silice e di altre superfici inorganiche per migliorare la loro compatibilità con materiali organici. Devono essere adottate precauzioni di sicurezza quando si maneggia questa sostanza, poiché può essere corrosiva e può comportare rischi per la salute se inalata o a contatto con la pelle.

Formula: 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

InChI key: InChIKey=GYWBHBXGYTYXRG-UHFFFAOYSA-N

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

Sinonimi:

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

DICHLORO-METHYL-OCTADECYLSILANE

CAS: 5157-75-5

Formula: C₁₉H₄₀Cl₂Si

Purezza: %

Peso molecolare: 367.5124

Ref: IN-DA003PDT

Dichloro(Methyl)(Octadecyl)Silane

CAS: 5157-75-5

Dichloro(Methyl)(Octadecyl)Silane

Purezza: 99%

Peso molecolare: 367.51g/mol

Ref: 54-OR1029957

Dichloro(methyl)octadecylsilane

CAS: 5157-75-5

Formula: C₁₉H₄₀Cl₂Si

Purezza: >94.0%(GC)

Colore e forma: White or Colorless to Almost white or Almost colorless powder to lump to clear liquid

Peso molecolare: 367.51

Ref: 3B-O0264

Methyl-n-octadecyldichlorosilane

CAS: 5157-75-5

Purezza: 95%

Colore e forma: Solid, Low Melting Solid

Peso molecolare: 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

Formula: C₁₉H₄₀Cl₂Si

Purezza: 97% including isomers

Colore e forma: Straw Liquid

Peso molecolare: 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.

Purezza: Min. 95%

Ref: 3D-FD62732

n-OCTADECYLMETHYLDICHLOROSILANE, 97%

CAS: 5157-75-5

Formula: C₁₉H₄₀Cl₂Si

Purezza: 97% including isomers

Colore e forma: Straw Liquid

Peso molecolare: 367.52

Ref: 3H-SIO6625.1