COMMERCIAL
112-04-9

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n-OCTADECYLTRICHLOROSILANE

Product Code: SIO6640.0

Cas No: 112-04-9

R&D quantities:

15 kg
$1,125.00
2 kg
$270.00
750 g
$160.00
25 g
$20.00
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 isomers
  • Provides lipophilic surface coatings
  • Employed in patterning and printing of electroactive molecular films
  • Immobilizes physiologically active cell organelles
  • Treated substrates increase electron transport of pentacene films
  • Boiling Point: 160-2° / 3

    EINECS Number: 203-930-7

    Melting Point: 22°

    Molecular Weight: 387.93

    Alternative Name: OTS

    Specific Gravity: 0.950

    Flashpoint: 189°C (372°F)

    HMIS Key: 3-1-1-X

    Hydrolytic Sensitivity: 8: reacts rapidly with moisture, water, protic solvents

    Formula: C18H37Cl3Si

    Refractive Index: 1.4602

    TSCA: TSCA

    Application: Employed in patterning and printing of electroactive molecular films.1,2
    Immobilizes physiologically active cell organelles.3
    Treated substrates increase electron transport of pentacene films.4

    Reference: 1. Huan, Z. et al. Synth. Met. 1997, 85, 1375.
    2. Jeon, J. et al. Langmuir 1997, 13, 3382.
    3. Arkles, B. et al. J. Biol. Chem. 1976, 250, 8856.
    4. Skankar, K. et al. J. Mater. Res. 2004, 19, 2003.

    Fieser:

    Additional Properties: Contains 5-10% C18 isomers; provides lipophilic surface coatings