Tetraethylsilane

CAS 631-36-7Si(C2H5)4Chemical Synthesis

Tetraethylsilane (CAS: 631-36-7), with the chemical formula Si(C2H5)4 and a molecular weight of 144.33 g/mol, is an organosilicon compound. It serves as a valuable precursor in materials science and micro/nanoelectronics, particularly for chemical vapour deposition (CVD) and atomic layer deposition (ALD) processes. Its properties make it suitable for various chemical synthesis applications and as a silicon source in organometallic chemistry.

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Tetraethylsilane (Si(C2H5)4) — chemical structure, CAS 631-36-7; Chemistry, fine chemical supplied by Tech Serve Solutions

Chemical SynthesisMaterials ScienceMicro/NanoElectronicsOrganometallic ReagentsOrganosiliconOthersSilicon

01 /Applications

CVD and ALD Precursor

Tetraethylsilane is utilised as a precursor in chemical vapour deposition (CVD) and atomic layer deposition (ALD) for the fabrication of silicon-containing thin films. These films are crucial in microelectronic devices and advanced material coatings.

Chemical Synthesis

As an organosilicon compound, Tetraethylsilane can be employed as a reagent in various organic synthesis pathways. It provides a source of silicon for creating complex organosilicon structures.

Materials Science

The compound finds application in materials science research, contributing to the development of novel materials with specific electronic or structural properties. Its use as a silicon source is key in this field.

Organometallic Reagent

Tetraethylsilane functions as an organometallic reagent, enabling the synthesis of silicon-based compounds. It is a useful building block in organosilicon chemistry for research and development.

02 /Properties

Molecular weight	144.33
Linear formula	Si(C2H5)4
Assay	99%
Boiling point	153-154 °C(lit.)
Density	0.761 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.4263(lit.)
Melting point	−82.5 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Protective equipment	Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	25 °C / 77 °F
Transport (UN / ADR)	UN 1993C 3 / PGIII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	10-36/37/38
Safety statements (S)	26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

631-36-7

MDL number

MFCD00009019

PubChem substance

24873537

Beilstein registry

1732768

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Tetraethylsilane (CAS 631-36-7) used for?

Tetraethylsilane is used as a precursor in chemical vapour deposition (CVD) and atomic layer deposition (ALD) for creating silicon-containing thin films, in chemical synthesis as an organosilicon reagent, and in materials science research.

What is the CAS number and chemical formula for Tetraethylsilane?

The CAS number for Tetraethylsilane is 631-36-7 and its chemical formula is Si(C2H5)4.

What grade and purity does Tech Serve Solutions supply for Tetraethylsilane?

Tech Serve Solutions supplies Tetraethylsilane with an assay of 99%. This product is not represented as USP, BP, EP, or pharmacopoeia grade.

What are the primary safety hazards associated with Tetraethylsilane?

Tetraethylsilane is a flammable liquid and vapour (H226). It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including gloves and eye protection, is essential when handling.

How is Tetraethylsilane typically packed and shipped by TSS?

Tetraethylsilane is packed in compliance with international regulations for hazardous materials, suitable for global export. Details on specific packaging sizes can be provided upon request.

How can I request a quote or sample for Tetraethylsilane?

To request a quote or sample of Tetraethylsilane, please contact our sales team through the website or provide your requirements via the contact details listed.