Methyltriethoxysilane
Methyltriethoxysilane
CAS: 2031-67-6
Molecular Formula: C7H18O3Si
Methyltriethoxysilane - Names and Identifiers
| Name | Methyltriethoxysilane |
| Synonyms | MTES ND-27 DYNASYLAN MTES Methyltriethoxylane Methyltriathoxysilan Methyltriethoxysilane Triethoxymethylsilane methyltriethoxysilicane |
| CAS | 2031-67-6 |
| EINECS | 217-983-9 |
| InChI | InChI=1/C7H18O3Si/c1-5-8-11(4,9-6-2)10-7-3/h5-7H2,1-4H3 |
| InChIKey | CPUDPFPXCZDNGI-UHFFFAOYSA-N |
Methyltriethoxysilane - Physico-chemical Properties
| Molecular Formula | C7H18O3Si |
| Molar Mass | 178.3 |
| Density | 0.895g/mLat 25°C(lit.) |
| Boling Point | 141-143°C(lit.) |
| Flash Point | 75°F |
| Water Solubility | INSOLUBLE |
| Vapor Presure | 11 mm Hg ( 20 °C) |
| Vapor Density | >1 (vs air) |
| Appearance | liquid |
| Specific Gravity | 0.896 |
| Color | colorless |
| BRN | 1742453 |
| Storage Condition | Store at |
| Stability | Stability Moisture-sensitive. Flammable - note low flash point. Incompatible with acids, oxidizing agents, moisture, water. |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.383(lit.) |
| Physical and Chemical Properties | Character: colorless liquid. boiling point 143 ℃ relative density 0.8810-0.8990 refractive index 1.3835 soluble in ethanol, benzene and gasoline. |
| Use | Used in rubber, medicine, used as silicone polymer raw materials. This product is an important raw material for the production of silicone resin, benzyl silicone oil and waterproof agent. At the same time, it is easy to hydrolyze and can form alkali metal silicon alkoxide with alkali metal hydroxide. And can be used for the crosslinking agent of room temperature vulcanized silicone rubber. |
Methyltriethoxysilane - Risk and Safety
| Risk Codes | 10 - Flammable |
| Safety Description | 16 - Keep away from sources of ignition. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| RTECS | VV4640000 |
| FLUKA BRAND F CODES | 10-21 |
| TSCA | Yes |
| HS Code | 29310095 |
| Hazard Class | 3 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 15700 mg/kg |
Methyltriethoxysilane - Upstream Downstream Industry
Methyltriethoxysilane - Nature
Open Data Verified Data
colorless liquid, relative density 0.8923. Boiling point 143 °c. Refractive index 3835. Soluble in ethanol, benzene and gasoline.
Last Update：2024-01-02 23:10:35
Methyltriethoxysilane - Preparation Method
Open Data Verified Data
methyltriethoxysilane was prepared by reacting monomethyltrichlorosilane with ethanol in the presence of a solvent.
Last Update：2022-01-01 10:54:19
Methyltriethoxysilane - Use
Open Data Verified Data
for the preparation of silicone glass resin and other resins.
Last Update：2022-01-01 10:54:19
Methyltriethoxysilane - Safety
Open Data Verified Data
- This product has low toxicity. Avoid Inhaling or swallowing. The operator should wear protective gear.
- packaged in glass bottles or plastic barrels, and stored in a cool and ventilated place. According to the general provisions of the storage and transportation of chemicals.
Last Update：2022-01-01 10:54:20
Methyltriethoxysilane - Reference Information
| LogP | -2.4-2.2 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | as RTV one-component silicone rubber crosslinking agent, is also the preparation of silicone resin raw materials, but also can deal with a variety of inorganic fillers. used as the main raw material of silicone resin, fabric finishing agent, benzyl silicone oil and the like used in the preparation of silicone glass resin. used in rubber, pharmaceutical industry, used as raw material of organic silicon polymer. This product is an important raw material for the production of silicone resin, benzyl silicone oil and waterproof agent. At the same time, it is easy to hydrolyze and can form alkali metal silicon alkoxide with alkali metal hydroxide. And can be used for the crosslinking agent of room temperature vulcanized silicone rubber. |
| production method | monomethyltrichlorosilane is obtained by reacting ethanol in a solvent. |
| category | toxic substances |
| toxicity grade | low toxicity |
| Acute toxicity | oral-rat LD50: 8570 μl/kg |
| stimulation data | Skin-rabbits 500 mg/24 h mild; eye-rabbit 100 microliter mild |
| flammability hazard characteristics | open flame flammability; High thermal decomposition; Reaction with oxidant |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants and food and chemical additives |
| extinguishing agent | dry powder, foam, carbon dioxide, sand. |
| autoignition temperature | 220°C |
Last Update：2024-04-10 22:29:15
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Raw Materials for Methyltriethoxysilane