52360

Hexadecyltrimethoxysilane

technical, ≥85% (GC)

• Synonym(s): Trimethoxyhexadecylsilane
• Linear Formula: H₃C(CH₂)₁₅Si(OCH₃)₃
• CAS Number: 16415-12-6
• Molecular Weight: 346.62
• Beilstein: 1949851
• EC Number: 240-464-3
• MDL number: MFCD00069149
• UNSPSC Code: 12352103
• PubChem Substance ID: 57651368
• NACRES: NA.23

Properties

• grade: technical
• Assay: ≥85% (GC)
• form: liquid
• impurities: isomers
• refractive index: n20/D 1.44
• density: 0.89 g/mL at 20 °C (lit.)
• SMILES string: CCCCCCCCCCCCCCCC[Si](OC)(OC)OC
• InChI: 1S/C19H42O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-23(20-2,21-3)22-4/h5-19H2,1-4H3
• InChI key: RSKGMYDENCAJEN-UHFFFAOYSA-N

Description

Application

Hexadecyltrimethoxysilane (HDTMS) may be used to prepare hydrophobic silica aerogels by sol-gel process.{80} HDTMS was coated upon silica covered aluminum pigments.{81} Metal nanoparticles (CeO₂, Fe₂O₄, TiO₂, ZnO) coated with HDTMS form stable dispersions in hydrocarbon solvents. {82} HDTMS may be used to functionalize polyisocyanurate (PIR) foams {84} and graphene.{83}

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 247.1 °F - closed cup
• Flash Point(C): 119.5 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves