Ethyl silicate

Name: Ethyl silicate
Brand: Vaqora Chemicals
SKU: VQ-011120

About Ethyl silicate

Ethyl silicate is an organosilicon compound in Synthesis grade carrying the CAS registry number 78-10-4 with a typical assay of ≥98%. The compound has the formula C8H20O4Si, corresponding to a molecular weight of 208.33 g/mol. The IUPAC name is tetraethyl silicate. It is also known as Orthosilicic acid tetraethyl ester or Tetraethoxysilane.

The product is provided as a liquid. Literature values give a boiling point of 168 °C and a density of 0.933 g/mL at 20 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. It carries the GHS signal word “Warning” with 4 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for organic synthesis, polymer and resin production, paints, coatings and inks and electronics and thin films. Our customers for this product work in pharmaceutical manufacturing, academic and industrial research and electronics and semiconductors.

Available in 500 mL, 5 L and 220 kg packs, Ethyl silicate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
Polymer & resin production
Paints, coatings & inks
Electronics & thin films

Industries

Specifications & identifiers

Chemical identifiers
Product name	Ethyl silicate
Catalogue No.	VQ-011120
CAS Number	78-10-4
IUPAC name	tetraethyl silicate
Molecular formula	C₈H₂₀O₄Si
Molecular weight	208.33 g/mol
Exact mass	208.1131
Grade	Synthesis
Purity / assay	≥98%
HSN code	29209099
InChIKey	BOTDANWDWHJENH-UHFFFAOYSA-N
SMILES	CCO[Si](OCC)(OCC)OCC
PubChem CID	6517

Physical properties
Physical form	Liquid
Appearance	Liquid
Boiling point	168 °C
Density	0.933 g/mL at 20 °C
H-bond donors / acceptors	0 / 4
TPSA	36.9 Å²
UN number	UN 1292
Synonyms	Orthosilicic acid tetraethyl ester, Tetraethoxysilane, Tetraethyl orthosilicate, Dynasil A, Silicon ethoxide, Silicon tetraethoxide, Silikan L, Ethyl orthosilicate, Etylu krzemian, Silane, tetraethoxy-, Tetraethylorthosilicate, Silicic acid, tetraethyl ester

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Warning

Hazard statements

H226Flammable liquid and vapor
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P210, P233, P240, P241, P242, P243, P261, P264 + P265, P271, P280, P303 + P361 + P353, P304 + P340, P305 + P351 + P338, P317, P319, P337 + P317, P370 + P378, P403 + P233, P403 + P235, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 78-10-4

Synthesis

Tetra ethoxy silane, 98%

CAS: 78-10-4
Formula: C₈H₂₀O₄Si
MW: 208.33 g/mol

VQ-011146

Synthesis

Tetraethyl orthosilicate, 98%

CAS: 78-10-4
Formula: C₈H₂₀O₄Si
MW: 208.33 g/mol

VQ-011147

Puriss

Tetraethyl orthosilicate, 99.999%

CAS: 78-10-4
Formula: C₈H₂₀O₄Si
MW: 208.33 g/mol

VQ-011149

Tetraethyl orthosilicate, 99%

CAS: 78-10-4
Formula: C₈H₂₀O₄Si
MW: 208.33 g/mol

VQ-011148

Frequently asked questions

What is the CAS number of Ethyl silicate?

The CAS Registry Number of Ethyl silicate is 78-10-4. It is also known as Orthosilicic acid tetraethyl ester, Tetraethoxysilane, Tetraethyl orthosilicate.

What is the molecular formula and molecular weight of Ethyl silicate?

Ethyl silicate has the molecular formula C8H20O4Si and a molecular weight of 208.33 g/mol. Its IUPAC name is tetraethyl silicate.

Which grade and pack sizes of Ethyl silicate can I order?

We supply Ethyl silicate in Synthesis (≥98%) grade, in 500 mL, 5 L, 220 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Ethyl silicate?

Yes. Every lot of Ethyl silicate is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Ethyl silicate be shipped internationally?

Yes. Ethyl silicate is classified as hazardous (UN 1292), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.