CAS 7521-80-4

Butyltrichlorosilane

Description:

Butyltrichlorosilane, with the CAS number 7521-80-4, is an organosilicon compound characterized by its structure, which includes a butyl group attached to a silicon atom that is also bonded to three chlorine atoms. This compound is typically a colorless to pale yellow liquid with a pungent odor. It is known for its reactivity, particularly in hydrolysis, where it can react with water to produce butylsiloxanes and hydrochloric acid. Butyltrichlorosilane is used primarily in the synthesis of silicone polymers and as a coupling agent in various chemical processes. It is important to handle this substance with care, as it can be corrosive and poses health risks upon exposure. Proper safety measures, including the use of personal protective equipment and adequate ventilation, are essential when working with this chemical. Additionally, it is advisable to store it in a cool, dry place away from moisture and incompatible materials to prevent unwanted reactions.

Formula: C₄H₉Cl₃Si

InChI: InChI=1S/C4H9Cl3Si/c1-2-3-4-8(5,6)7/h2-4H2,1H3

InChI key: InChIKey=FQEKAFQSVPLXON-UHFFFAOYSA-N

SMILES: C([Si](Cl)(Cl)Cl)CCC

Synonyms:

• Butyl trichlorosilane
• Butylsilicon trichloride
• Butyltrichlorosilane
• Hsdb 283
• N-Butyl trichlorosilane
• Nsc 93881
• Silane, butyltrichloro-
• Trichlorobutylsilane
• Butyltrichlorosilane [UN1747] [Corrosive]
• Un1747

n-Butyltrichlorosilane, 97+%

CAS: 7521-80-4

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: C₄H₉Cl₃Si

Purity: 97+%

Color and Shape: Clear colorless to pale yellow, Liquid

Molecular weight: 191.55

Ref: 02-A11256

n-BUTYLTRICHLOROSILANE

CAS: 7521-80-4

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-Butyltrichlorosilane; Trichlorosilylbutane
Vapor pressure, 31 °C: 10 mm

Formula: C₄H₉Cl₃Si

Purity: 97%

Color and Shape: Liquid

Molecular weight: 191.56

Ref: 3H-SIB1982.0

n-Butyltrichlorosilane

CAS: 7521-80-4

n-Butyltrichlorosilane

Formula: (C₄H₉)SiCl₃

Color and Shape: colorless liq.

Molecular weight: 191.50

Ref: 08-93-1403