Tetraethoxysilane (CAS 78-10-4) — formula C8H20O4Si, molecular weight 208.33; category specialty chemicals.
Tetraethoxysilane (CAS 78-10-4) is a chemical raw material in the specialty chemicals category. Its molecular formula C8H20O4Si comprises 8 C, 20 H, 4 O, 1 Si atoms. Its molecular weight is about 208.33. Reported physicochemical data: melting point around -121.9 °F (USCG, 1999), boiling point around 336 °F at 760 mmHg (USCG, 1999). As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 78-10-4 |
|---|---|
| Molecular Formula | C8H20O4Si |
| Molecular Weight | 208.33 |
| Melting Point | -121.9 °F (USCG, 1999) |
| Boiling Point | 336 °F at 760 mmHg (USCG, 1999) |
| Applications | mortar and surface coatings to improve resistance to weather and chemical corrosion, Used in the semiconductor/electronics industry, [CSH, p. 402] Used in castings for alloys with high melting points, copper alloys, and dental prosthetic devices |
| Category | Specialty Chemicals |
Documented applications: mortar and surface coatings to improve resistance to weather and chemical corrosion, Used in the semiconductor/electronics industry, [CSH, p. 402] Used in castings for alloys with high melting points, copper alloys, and dental prosthetic devices.
Tetraethoxysilane is a specialty compound with CAS registry number 78-10-4 and molecular formula C8H20O4Si (molecular weight 208.33), belonging to the specialty chemicals segment of chemical raw materials.
CAS number: 78-10-4
Its molecular formula C8H20O4Si comprises 8 C, 20 H, 4 O, 1 Si atoms.
Also known as: Tetraethoxysilane · 聚硅酸乙酯 · Tetraethyl orthosilicate · TETRA ETHYL SILICATE · Ethyl silicate
Category: specialty chemicals
The CAS registry number of Tetraethoxysilane is 78-10-4.
Molecular formula C8H20O4Si, molecular weight 208.33.
It is also registered under: Tetraethoxysilane, 聚硅酸乙酯, Tetraethyl orthosilicate, TETRA ETHYL SILICATE, Ethyl silicate.
Recorded applications: mortar and surface coatings to improve resistance to weather and chemical corrosion, Used in the semiconductor/electronics industry, [CSH, p. 402] Used in castings for alloys with high melting points, copper alloys, and dental prosthetic devices.
Category: Specialty Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Tetraethoxysilane (CAS 78-10-4), compiled from public chemistry databases.
| CAS Number | 78-10-4 |
|---|---|
| PubChem CID | 6517 |
| Molecular Formula | C8H20O4Si |
| IUPAC Name | tetraethyl silicate |
| UNII (FDA) | 42064KRE49 |
| Molecular Weight | 208.33 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 8 |
| Exact Mass | 208.11308565 |
| Monoisotopic Mass | 208.11308565 |
| Topological Polar Surface Area | 36.9 |
| Heavy Atom Count | 13 |
| Boiling Point | 336 °F at 760 mmHg (USCG, 1999) |
|---|---|
| Boiling Point | 168.8 °C |
| Boiling Point | 168 °C |
| Boiling Point | 336 °F |
| Boiling Point | 168.8 °C @760 [mm Hg] |
| Melting Point | -121.9 °F (USCG, 1999) |
| Melting Point | -82.5 °C |
| Melting Point | -77 °C |
| Melting Point | -117 °F |
| Flash Point | 99 °F (USCG, 1999) |
Tetraethyl orthosilicate; Tetraethoxysilane; Tetraethyl silicate; 78-10-4; TEOS; ETHYL SILICATE; Dynasil A; Silicon ethoxide; Silicon tetraethoxide; Silikan L; Ethyl orthosilicate; Tetraethoxysilicon; Etylu krzemian; Tetraethylsilikat; Silane, tetraethoxy-; Tetraethylorthosilicate
| GHS notifications | 0.1% (1 / 1197) |
|---|
| GHS notifications | 0.1% (1 / 1197) |
|---|---|
| Notified hazard statements | H226, H319, H332, H335, H315, H336, H370, H372 |
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 聚硅酸乙酯