ethenyl(triethoxy)silane
Triethoxyvinylsilane
CAS: 78-08-0
Molecular Formula: C8H18O3Si
ethenyl(triethoxy)silane - Names and Identifiers
| Name | Triethoxyvinylsilane |
| Synonyms | VTEO A 151 CV-4910 Dynasylan VTEO DYNASYLAN VTEO unioncarbidea-151 Trietoxyvinylsilane Union carbide A-151 Vinyltriethoxysilane triethoxyvinyl-silan Triethoxyvinylsilane ethenyltriethoxy-silan ethenyltriethoxy-Silane ethenyl(triethoxy)silane Ethenyltriethyloxy-silane Silane Coupling Agent A-151 |
| CAS | 78-08-0 |
| EINECS | 201-081-7 |
| InChI | InChI=1/C8H18O3Si/c1-5-9-12(8-4,10-6-2)11-7-3/h8H,4-7H2,1-3H3 |
| InChIKey | FWDBOZPQNFPOLF-UHFFFAOYSA-N |
ethenyl(triethoxy)silane - Physico-chemical Properties
| Molecular Formula | C8H18O3Si |
| Molar Mass | 190.31 |
| Density | 0.903g/mLat 25°C(lit.) |
| Melting Point | <0°C |
| Boling Point | 160-161°C(lit.) |
| Flash Point | 94°F |
| Water Solubility | decomposes |
| Solubility | Miscible with organic solvents. |
| Vapor Presure | 7 hPa (20 °C) |
| Appearance | liquid |
| Specific Gravity | 0.903 |
| Color | colorless |
| BRN | 1767229 |
| Storage Condition | Store below +30°C. |
| Sensitive | 7: reacts slowly with moisture/water |
| Explosive Limit | 0.53-15%(V) |
| Refractive Index | n20/D 1.398(lit.) |
| Physical and Chemical Properties | Density 0.903 boiling point 160-161°C refractive index 1.397-1.399 flash point 34°C water-soluble decomposers |
| Use | Widely used for silane cross-linked polyethylene cables and pipes |
ethenyl(triethoxy)silane - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R10 - Flammable R36/37 - Irritating to eyes and respiratory system. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 2 |
| RTECS | VV6700000 |
| FLUKA BRAND F CODES | 21 |
| TSCA | Yes |
| HS Code | 29310095 |
| Hazard Class | 3 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 7280 mg/kg LD50 dermal Rabbit 9100 mg/kg |
ethenyl(triethoxy)silane - Upstream Downstream Industry
ethenyl(triethoxy)silane - Introduction
Open Data Unverified Data
vinyltriethoxysilane also known as triethoxyvinylsilane, molecular formula is C8H18O3Si, molecular weight of 190.3122, the material is mainly widely used in silane cross-polyethylene cables and pipes.
Last Update：2022-01-01 08:51:19
ethenyl(triethoxy)silane - Supplementary Information
Open Data Unverified Data
category combustible articles
Toxicity grade: low toxicity
Acute oral toxicity-rat LD50: 22500 mg/kg
Irritation data skin-rabbit 500 mg mild; Eye-rabbit 500 mg/24 h mild
Flammability hazard characteristics in case of open flame, high temperature, strong oxidant flammable; Combustion emission stimulus smoke
Storage and Transportation characteristics: the package is complete, light and light; The warehouse is ventilated, away from the open flame, stored at high temperature, and stored separately from the oxidant
Fire extinguishing agent foam, carbon dioxide, sand
Last Update：2022-01-01 08:51:19
ethenyl(triethoxy)silane - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | as RTV one-component silicone rubber crosslinking agent, (alcohol type), as a crosslinking agent in polymers (such as PE) widely used in silane cross-linked polyethylene cables and pipes used as hydrophobic agent and glass cloth surface treatment agent It has the function of coupling agent and crosslinking agent, and the suitable polymer types are polyethylene, polypropylene, unsaturated Polyester, commonly used in glass fiber, plastic, glass, cable, ceramic, rubber, etc. hydrophobic agent. Glass cloth surface treatment agent. Moisture-proof insulating materials for radio parts, etc. |
| production method | can be prepared by the reaction of vinyl trichlorosilane and anhydrous ethanol, it can also be prepared by the reaction of tetraethoxysilane with vinyl magnesium bromide. 1. Synthesis of Vinyltrichlorosilane???? The trichlorosilane is heated and then introduced into acetylene, preferably by an addition reaction in the liquid or gas phase in the presence of a catalyst such as a peroxide, a tertiary amine or a platinum salt. 2. Synthesis of vinyltriethylsilane 3. The product was prepared by one-step addition of triethoxysilane and acetylene as raw materials under the catalysis of dichlorobistriphenylphosphorus and platinum salt. The reaction temperature is 90~130 ℃, and the synthesis reaction formula is as follows: there are two kinds of processes: liquid phase method and gas phase method. The liquid phase method is to add the triethoxysilane and the catalyst to the reaction system, and then the acetylene is introduced into the reaction material to carry out the reaction. In the gas phase method, the catalyst is loaded in a tubular reactor, and then, triethoxysilane is vaporized, mixed with acetylene, and then introduced into the reactor for reaction. Vinyl trichlorosilane can also be synthesized first, and then vinyl triethoxysilane is prepared by heating the reaction of vinyl trichlorosilane with ethanol; Or vinyl trichlorosilane and triethyl orthoformate are co-heated in the presence of ethanol to obtain: |
| category | combustible articles |
| toxicity grade | low toxicity |
| Acute toxicity | oral-rat LD50: 22500 mg/kg |
| stimulation data | Skin-rabbit 500 mg mild; eye-rabbit 500 mg/24 h mild |
| flammability hazard characteristics | flammable in open flame, high temperature, strong oxidant; combustion emissions |
| storage and transportation characteristics | The package is complete, light and light unloading; The warehouse is ventilated, away from open flame, high temperature, separate from oxidant |
| fire extinguishing agent | foam, carbon dioxide, sand |
| autoignition temperature | 265°C |
Last Update：2024-04-10 22:29:15
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Raw Materials for ethenyl(triethoxy)silane