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40955 Sigma-Aldrich

Methoxy(dimethyl)octadecylsilane

technical, ≥90% (GC)

Synonym: Dimethylmethoxyoctadecylsilane, Dimethyloctadecylmethoxysilane, Octadecyldimethylmethoxysilane

  • CAS Number 71808-65-6

  • Empirical Formula (Hill Notation) C21H46OSi

  • Molecular Weight 342.67

  •  Beilstein/REAXYS Number 7346074

  •  EC Number 276-039-4

  •  MDL number MFCD00042920

  •  PubChem Substance ID 57650036

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Properties

Related Categories Chemical Synthesis, Materials Science, Micro/NanoElectronics, Organometallic Reagents, Organosilicon,
InChI Key   RUFRLNPHRPYBLF-UHFFFAOYSA-N
grade   technical
assay   ≥90% (GC)
impurities   5-10% other C18-isomers
refractive index   n20/D 1.444 (lit.)
  n20/D 1.444
density   0.83 g/mL at 25 °C (lit.)

Description

General description

Methoxy(dimethyl)octadecylsilane(MDOS) is an organosilane with one methoxy group. It is a silane coupling agent which forms a self-assembled monolayer(SAM) on a variety of particles.

Application

MDOS can be used as an adhesion promoter between wool fiber and the polyethylene matrix that can be used to conserve waste of wool and poultry feathers. Wood fibre silanized with MDOS can be used as reinforcement to prepare polyethylene based composites with improved thermo-oxidative stability.

Packaging

25 mL in glass bottle

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
Flash Point(F) 
235.4 °F
Flash Point(C) 
113 °C

Documents

Certificate of Analysis

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Protocols & Articles
Peer-Reviewed Papers
15

References

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