Basic information Description Safety Supplier Related
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Dimethyldimethoxysilane

Basic information Description Safety Supplier Related

Dimethyldimethoxysilane Basic information

Product Name:
Dimethyldimethoxysilane
Synonyms:
  • ay43-004
  • CD5605
  • dimethoxydimethyl-silan
  • KBM 22
  • kbm22
  • DiMethoxydiMethylsilane, 95+%, AcroSeal
  • DIMETHOXYDIMETHYLSILANE
  • DIMETHYLDIMETHOXYSILANE
CAS:
1112-39-6
MF:
C4H12O2Si
MW:
120.22
EINECS:
214-189-4
Product Categories:
  • Di-Alkoxy Silanes
  • Silane Coupling Agents/Adhesion Promoters
  • Dialkoxysilanes
  • Functional Materials
  • Si (Classes of Silicon Compounds)
  • Silane Coupling Agents
  • Silane Coupling Agents (Intermediates)
  • Si-O Compounds
  • Alkoxy Silanes
  • Crosslinkers
  • Crosslinking Agents
  • Chemical Synthesis
  • Contact Printing
  • Materials Science
  • Micro/NanoElectronics
  • Organometallic Reagents
  • Organosilicon
  • Others
  • Self Assembly &amp
  • Silanes
  • Silicon
  • Solution Deposition Precursors
Mol File:
1112-39-6.mol
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Dimethyldimethoxysilane Chemical Properties

Melting point:
-80°C
Boiling point:
81.4 °C(lit.)
Density 
0.88 g/mL at 25 °C(lit.)
vapor pressure 
7-12790Pa at 20-25℃
refractive index 
n20/D 1.369(lit.)
Flash point:
50 °F
storage temp. 
Store below +30°C.
form 
liquid
Specific Gravity
0.88
color 
Colorless to Almost colorless
Water Solubility 
decomposes
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
BRN 
1733694
Dielectric constant
3.6600000000000001
InChIKey
JJQZDUKDJDQPMQ-UHFFFAOYSA-N
LogP
-0.74-2 at 20℃
CAS DataBase Reference
1112-39-6(CAS DataBase Reference)
NIST Chemistry Reference
Silane, dimethoxydimethyl-(1112-39-6)
EPA Substance Registry System
Silane, dimethoxydimethyl- (1112-39-6)
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Safety Information

Hazard Codes 
F,Xi
Risk Statements 
11-36-36/37/38
Safety Statements 
16-26-33-36-37/39
RIDADR 
UN 1993 3/PG 2
WGK Germany 
3
RTECS 
VV3641666
10-21
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29319090
Toxicity
LC inhalation in rat: > 21350mg/m3/4

MSDS

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Dimethyldimethoxysilane Usage And Synthesis

Description

Dimethyldimethoxysilane is a monomeric alkylalkoxysilane. It hydrolyzes in contact with water, releasing methanol, to form highly reactive silanols, which further condense to form oligomeric and polymeric siloxanes.

Dimethyldimethoxysilane is mainly used in these aspects:

  • In the synthesis of chemical intermediates.
  • As an additive for the production of silicone resins.
  • In the hydrophobization of surfaces, like glass, pigments etc.

Chemical Properties

Colorless clear liquid

Uses

It is employed as silylating agent for diols. Used as a monomer (?building block?) in the production of silicone polymers or silicone resins, as an intermediate (starting material) in the production of other organosilicon substances. Also employed in non-metal surface treatment to enhance the adhesion properties of surfaces. Used in sealants, in silicone polymer preparations (for the production of elastomers), in mould-making, in semiconductor manufacture, as a laboratory chemical in research and development activities.

Uses

Dimethoxydimethylsilane (DMDMS) can be used:

  • To synthesize various macroporous silica aerogels.
  • In the preparation of hollow silica nanoparticles loaded with phthalocyanine for near-infrared photodynamic and photothermal combination therapy.
  • To synthesize dielectric silicone elastomer with high dielectric permittivity.

Flammability and Explosibility

Highly flammable

DimethyldimethoxysilaneSupplier

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