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52360

Sigma-Aldrich

Hexadecyltrimethoxysilane

technical, ≥85% (GC)

Synonym(s):
Trimethoxyhexadecylsilane
Linear Formula:
H3C(CH2)15Si(OCH3)3
CAS Number:
Molecular Weight:
346.62
Beilstein:
1949851
EC Number:
MDL number:
PubChem Substance ID:

grade

technical

Quality Level

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

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Sigma-Aldrich

205389

Hexamethyldisiloxane

grade

technical

grade

-

grade

-

grade

-

assay

≥85% (GC)

assay

≥98%

assay

85%

assay

95%

form

liquid

form

liquid

form

-

form

liquid

impurities

isomers

impurities

-

impurities

-

impurities

3% methyl alcohol

refractive index

n20/D 1.44

refractive index

n20/D 1.377 (lit.)

refractive index

n20/D 1.55 (lit.)

refractive index

n20/D 1.369 (lit.)

density

0.89 g/mL at 20 °C (lit.)

density

0.764 g/mL at 20 °C (lit.)

density

0.95 g/mL at 25 °C (lit.)

density

0.88 g/mL at 25 °C (lit.)

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}

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

247.1 °F

Flash Point(C)

119.5 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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