Basic information
- CAS
17689-77-9- Standard SMILES
CC[Si](OC(C)=O)(OC(C)=O)OC(C)=O- InChIKey
KXJLGCBCRCSXQF-UHFFFAOYSA-N- Molecular formula
- C8H14O6Si
- Average molar mass
- 234.28 g/mol
- Monoisotopic mass
- 234.0559647
Names & identifiers
- Preferred name
- Ethyltriacetoxysilane
- IUPAC
- [diacetyloxy(ethyl)silyl] acetate
- English name
- (Triacetoxy)ethylsilane
- Molecular formula
- C8H14O6Si
- Molecular weight
- 234.28
Names & synonyms
EthyltriacetoxysilaneTriacetoxyethylsilaneSilanetriol, 1-ethyl-, 1,1,1-triacetateSilanetriol, ethyl-, triacetateDTXSID3027792Dynasylan ETACEINECS 241-677-4UNII-38023A64VVETHYLSILANETRIOL TRIACETATE38023A64VVDTXCID607792TRIS(ACETYLOXY)ETHYLSILANE
Show more names
ETASEthyltriacethoxysilaneethvltriacetoxvsilaneethyltriacetoxyslianeTriacetoxyethylsilane>ETHYLSILANETRIOLTRIACETATEethyl-silanetriotriacetateEthylsilanetriyl triacetate
EC 241-677-4CE6345RefChem:139208Ethylsilanetriol, triacetateSilanetriol, ethyl, triacetateSilanetriol, 1ethyl, 1,1,1triacetateKXJLGCBCRCSXQF-UHFFFAOYSA-N17689-77-9
Database identifiers
- CAS
17689-77-9- PubChem CID
- 87244
- DTXSID
DTXSID3027792- ChEMBL
CHEMBL3185159- UNII
- 38023A64VV
- EC Number
- 241-677-4
- Nikkaji
- J266.800I
Properties
Computed structural properties
- Topological polar surface area
- 78.9 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 6
- Rotatable bonds
- 7
- Heavy atoms
- 15
- Formal charge
- 0
- Complexity
- 234
Experimental & physicochemical properties
Chemical ClassesMetals -> Metalloid Compounds (Silicon)
Vapor Pressure0.04 [mmHg]
Physical Description
Liquid
Off-white liquid with an odor of acetic acid; mp = 8.4 deg C; [OECD SIDS: IUCLID Data Set] Colorless liquid; mp = 7-9 deg C; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 7 · 7-9°C
- Boiling point
- 98 °C4 · 98 °C4 mm Hg(lit.)
- Density
- 1.14 g/mL · 1.14 g/mL at 25 °C(lit.)
- vapor pressure
- 2.67 · 2.67-5.1Pa at 20℃
- refractive index
- 20 · n20/D 1.411(lit.)
- Flash point
- 224 °F · 224 °F
- form
- clear liquid
- Specific Gravity
- 1.143 · 1.143
- color
- Colorless to Light yellow
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 1.6% (6 of 378) of reports.
Danger
H302 (83.3%): Harmful if swallowed [Warning Acute toxicity, oral]
P260, P264, P264+P265, P270, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P363, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 378 reports by companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Not Classified
Hazard information
Regulatory Information
Chemical: Silanetriol, ethyl-, triacetate
Silanetriol, 1-ethyl-, 1,1,1-triacetate is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silanetriol, 1-ethyl-, 1,1,1-triacetate are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 04-08-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/14224
Silanetriol, ethyl-, triacetate: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationEvaluation - Chemicals that are unlikely to require further regulation to manage risks to environment
Hazards Summary
Oral LD50 (rat) = 380 mg/kg; [EPA - TSCATS] Acetic acid and sodium acetate demonstrate no evidence of toxicity to fertility or teratogenicity; [OECD SIDS: Ethyltriacetoxysilane - 2005] No human exposure from use in silicone sealants due to the nature of the curing process; Rapidly hydrolyzed by moisture/water forming acetic acid and the corresponding trisilanol (toxicity expected primarily from acetic acid); Severely irritating and corrosive to skin; [OECD SIDS: Ethyltriacetoxysilane - 2005] Hydrolyzed by water; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Alfa Aesar MSDS] See Acetic acid.
Chemistry & industry
Uses & manufacturing
UsesUsed as a cross-linker for silicone sealants and adhesives available in consumer, industrial, and construction markets; [OECD SIDS: Ethyltriacetoxysilane - 2005]
U.S. Production2023: 1,000,000 - <5,000,000 lb
Consumer UsesWaterproofing agent
Industry UsesSealant (barrier)
Household ProductsInformation on 36 consumer products that contain Ethyltriacetoxysilane in the following categories is provided:
General Manufacturing Information
Miscellaneous Manufacturing
Silanetriol, 1-ethyl-, 1,1,1-triacetate: ACTIVE
Applications
UsesTriacetoxy(ethyl)silane is used in sealants, the substance is used as a cross-linking agent and adhesion promoter.
Upstream & downstream products
Upstream raw materials
Related reactions
2 records
Compound notes
Loading…