Dimethyldiethoxysilane

from Wikipedia, the free encyclopedia
Structural formula
Structure of dimethyldiethoxysilane
General
Surname Dimethyldiethoxysilane
other names
  • Diethoxy (dimethyl) silane
  • DMDEOS
  • DMDES
Molecular formula C 6 H 16 O 2 Si
Brief description

colorless liquid

External identifiers / databases
CAS number 78-62-6
EC number 201-127-6
ECHA InfoCard 100.001.025
PubChem 62322
ChemSpider 56117
Wikidata Q424884
properties
Molar mass 148.28 g mol −1
Physical state

liquid

density

0.84 g cm −3

Melting point
  • −87 ° C
  • -70 ° C
boiling point

113 ° C

Vapor pressure

27 h Pa (at 20 ° C)

solubility
Refractive index

1.3811 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 07 - Warning

danger

H and P phrases H: 225-315-319-335
P: 210-240-280-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Dimethyldiethoxysilane (also DMDEOS or DMDES ) is a chemical compound that belongs to the class of silanes .

use

Dimethyldiethoxysilane is a monomer , used in the preparation of the silicone polymer polydimethylsiloxane can be used (PDMS). It can also be used for corrosion protection and, together with methyltriethoxysilane, for the production of thin silicon dioxide layers. A polycondensation based on acid catalysis can give a material amphiphobic properties as a coating on dimethyldiethoxysilane and sulfuric acid .

Individual evidence

  1. ↑ a b c d e f g h Entry on dimethyldiethoxysilane in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
  2. ↑ a b David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-162.
  3. ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 87th edition. (Internet version: 2006–2007), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-180 ( limited preview in Google book search).
  4. ↑ Lhadi Merhari: Hybrid Nanocomposites for Nanotechnology. Springer Science & Business Media, 2009, ISBN 978-0-387-30428-1 , p. 184 ( limited preview in Google book search).
  5. ↑ I. Csupor: studies on inhibitors of atmospheric corrosion of precision mechanical products. In: Materials and Corrosion / Werkstoffe und Korrosion. 30, 1979, pp. 862-864, doi : 10.1002 / maco.19790301206 .
  6. ↑ Covalently Attached Liquids: Instant Omniphobic Surfaces with Unprecedented Repellency . November 16, 2015.