Dimethyldimethoxysilane
Synonym(s):Dimethyldimethoxysilane;DMDMS
- CAS NO.：1112-39-6
- Empirical Formula: C4H12O2Si
- Molecular Weight: 120.22
- MDL number: MFCD00025691
- EINECS: 214-189-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:52
What is Dimethyldimethoxysilane?
Chemical properties
Colorless clear liquid
The Uses of Dimethyldimethoxysilane
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.
The Uses of Dimethyldimethoxysilane
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
Properties of Dimethyldimethoxysilane
| 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 | n |
| Flash point: | 50 °F |
| storage temp. | Store below +30°C. |
| form | liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.88 |
| Water Solubility | decomposes |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 1733694 |
| Dielectric constant | 3.6600000000000001 |
| 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) |
Safety information for Dimethyldimethoxysilane
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H225:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for Dimethyldimethoxysilane
| InChIKey | JJQZDUKDJDQPMQ-UHFFFAOYSA-N |
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