A7662612
Triethoxymethylsilane , 98% , 2031-67-6
Synonym(s):
Methyltriethoxysilane;Methyltriethoxysilane, MTES;Triethoxymethylsilane
CAS NO.：2031-67-6
Empirical Formula: C7H18O3Si
Molecular Weight: 178.3
MDL number: MFCD00009066
EINECS: 217-983-9
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | <-40°C |
| Boiling point: | 141-143 °C(lit.) |
| Density | 0.895 g/mL at 25 °C(lit.) |
| vapor density | >1 (vs air) |
| vapor pressure | 11 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 75 °F |
| storage temp. | Store at <= 20°C. |
| form | liquid |
| color | colorless |
| Specific Gravity | 0.896 |
| Odor | Mild odor |
| Water Solubility | INSOLUBLE |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 1742453 |
| Dielectric constant | 3.8500000000000001 |
| Stability: | Moisture-sensitive. Flammable - note low flash point. Incompatible with acids, oxidizing agents, moisture, water. |
| InChI | 1S/C7H18O3Si/c1-5-8-11(4,9-6-2)10-7-3/h5-7H2,1-4H3 |
| InChIKey | CPUDPFPXCZDNGI-UHFFFAOYSA-N |
| SMILES | CCO[Si](C)(OCC)OCC |
| LogP | -2.4-2.2 |
| CAS DataBase Reference | 2031-67-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Silane, triethoxymethyl-(2031-67-6) |
| EPA Substance Registry System | Triethoxymethylsilane (2031-67-6) |
Description and Uses
Methyltriethoxysilane is used in production of silicone polymers or silicone resin. It is used in non-metal surface treatment, non-aqueous polymer preparation, manufacture of semi-conductors, coatings and sealants. It finds application as cross linking agent and an adhesion promoter.
Safety
| Symbol(GHS) |  GHS02 |
| Signal word | Warning |
| Hazard statements | H316-H320-H226 |
| Precautionary statements | P501-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P337+P313-P305+P351+P338-P303+P361+P353-P332+P313-P403+P235 |
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter |
| Risk Statements | 10 |
| Safety Statements | 16 |
| RIDADR | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| RTECS | VV4640000 |
| F | 10-21 |
| Autoignition Temperature | 220 °C |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29310095 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Flam. Liq. 3 |
| Toxicity | LD50 orally in Rabbit: 15700 mg/kg |
| REACH Registrations | Active |
