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Molecule
Tetraethyl Orthosilicate
CAS: 78-10-4 · C8H20O4Si
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 78-10-4
- Molecular Formula
- C8H20O4Si
- Molecular Mass
- 208.33 g/mol
Identifiers
CAS Registry Number
78-10-4
SMILES
CCO[Si](OCC)(OCC)OCC
InChI Key
BOTDANWDWHJENH-UHFFFAOYSA-N
InChI
InChI=1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3
Names and Synonyms
- Tetraethyl Orthosilicate Common Name
- AY 43-101 Synonym
- Silicic acid (H4SiO4), tetraethyl ester Synonym
- Ethyl silicate ((EtO)4Si) Synonym
- Ethyl orthosilicate Synonym
- Silane, tetraethoxy- Synonym
- TEOS Synonym
- Tetraethyl silicate Synonym
- Tetraethoxysilane Synonym
- Silicon ethoxide Synonym
- Silicon tetraethoxide Synonym
- Dynasil A Synonym
- Tetraethoxysilicon Synonym
- ES 28 (ester) Synonym
- Tetraethyl orthosilicate Synonym
- ES 28 Synonym
- ES 100 (silicate) Synonym
- Silikan L Synonym
- SI 42 Synonym
- TES 28 Synonym
- Silicon tetraethoxide (Si(OEt)4) Synonym
- Silicon ethoxide (Si(OEt)4) Synonym
- ES 100 Synonym
- Conservare OH Synonym
- Ethyl silicate 28 Synonym
- TSL 8124 Synonym
- Tetraethoxysilicon(IV) Synonym
- KBE 04 Synonym
- LS 2430 Synonym
- Silicon tetraethoxide (Si(OC2H5)4) Synonym
- ES 140 Synonym
- Colcoat 6P Synonym
- Ethyl Silicate 45 Synonym
- ES 45 Synonym
- T 1807 Synonym
- LS 2340 Synonym
- PETEOS Synonym
- NSC 4790 Synonym
- KBM 06 Synonym
- T 0100 Synonym
- Unisilan 74 Synonym
- ES 28P Synonym
- T 0100 (ester) Synonym
- Remmers 300 Synonym
- KIEM-Silex OH Synonym
- Ethyl silicate PHASE Synonym
- Ethyl silicate 28P Synonym
- TSLB 124 Synonym
- PG 121 Synonym
- WD 932 Synonym
- TEOS Pure Synonym
- SOTEOS Synonym
- Z 6697 Synonym
- Ethyl Silicate A Synonym
- Silres BSOH 100 Synonym
- N 100 Synonym
- N 100 (silicate) Synonym
- Silquest TEOS Pure Synonym
- Estel 1000 Synonym
- Silquest SIT 7110.0 Synonym
- Si 28 (coupling agent) Synonym
- Si 28 Synonym
- Dynasylan TEOS-UHP Synonym
- Ekos 1 Synonym
- Dynasylan A Synonym
- T 1126 Synonym
- E 28 Synonym
- SSG-HB 21N Synonym
- Dynasylan Silbond Condensed Synonym
- ECOS 1 Synonym
- Tanapel DSR Synonym
- SIT 7110.0 Synonym
- ADC 68 Synonym
- Silikat TES 28 Synonym
- KBE 14 Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 208.33 g/mol | CAS Common Chemistry |
| 208.32999999999996 g/mol | RDKit | |
| Density | 0.93 g/cm³ | CAS Common Chemistry |
| 0.933 g/cm3 @ 20 °C | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Tetraethyl_orthosilicate | CAS Common Chemistry |
| Canonical SMILES | O(CC)[Si](OCC)(OCC)OCC | CAS Common Chemistry |
| InChI | InChI=1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3 | CAS Common Chemistry |
| InChI Key | InChIKey=BOTDANWDWHJENH-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | -82.5 °C | CAS Common Chemistry |
| Name | Tetraethoxysilane | CAS Common Chemistry |
| Tetraethyl orthosilicate | CAS Common Chemistry | |
| Heavy Atom Count | 13 | RDKit |
| Hydrogen Bond Acceptors | 4 | RDKit |
| Hydrogen Bond Donors | 0 | RDKit |
| Rotatable Bonds | 8 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 36.92 Ų | RDKit |
| LogP | 1.568 | RDKit |
| Molar Refractivity | 52.258000000000045 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 1.0 | RDKit |
| Exact Mass | 208.11308565 g/mol | RDKit |
| Boiling Point | 168.8 °C @ 760 Torr | CAS Common Chemistry |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
External Resources
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MW = 208.33 g/mol; density = 0.930 g/mL. Edit any field — others recompute live.
