| Identification | More | [Name]
Dimethyldimethoxysilane | [CAS]
1112-39-6 | [Synonyms]
DIMETHOXYDIMETHYLSILANE
DIMETHYLDIMETHOXYSILANE
ay43-004
CD5605
dimethoxydimethyl-silan
KBM 22
kbm22
tsl8112
tsl8117
DIMETHOXYDIMETHYLSILANE, ASSAY>99.5%, METALS 99.999%
Dimethyldimethoxysilane99%alsoavailable
Silane, dimethoxydimethyl-
Dimethyldimethoxysilane, Dow Corning(R) product Z-6194 | [EINECS(EC#)]
214-189-4 | [Molecular Formula]
C4H12O2Si | [MDL Number]
MFCD00025691 | [Molecular Weight]
120.22 | [MOL File]
1112-39-6.mol |
| Chemical Properties | Back Directory | [Appearance]
Colorless clear liquid | [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.)
| [Fp ]
50 °F
| [storage temp. ]
Store below +30°C. | [form ]
liquid | [color ]
Colorless to Almost colorless | [Specific Gravity]
0.88 | [Water Solubility ]
decomposes | [Hydrolytic Sensitivity]
7: reacts slowly with moisture/water | [Sensitive ]
Moisture Sensitive | [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]
1112-39-6(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xi | [Risk Statements ]
R11:Highly Flammable.
R36:Irritating to the eyes.
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S33:Take precautionary measures against static discharges .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection . | [RIDADR ]
UN 1993 3/PG 2
| [WGK Germany ]
3
| [RTECS ]
VV3641666
| [F ]
10-21 | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
II | [HS Code ]
29319090 | [Toxicity]
LC inhalation in rat: > 21350mg/m3/4 |
| Questions And Answer | Back Directory | [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.
|
| Hazard Information | Back Directory | [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. | [Flammability and Explosibility]
Highlyflammable | [Toxics Screening Level]
The Initial Threshold Screening Level (ITSL) for dimethoxydimethylsilane is 90 μg/m3 with annual averaging time. |
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