Description

Tetraethoxygermane is a high-purity organogermanium compound, specifically the tetraethyl ester of germanic acid. This chemical serves as a versatile and critical precursor for the synthesis of germanium dioxide (GeO₂) thin films and other germanium-based materials via chemical vapor deposition (CVD) and sol-gel processes. It is essential for manufacturers and R&D facilities in the semiconductor, optical fiber, and advanced ceramics industries seeking reliable, high-quality germanium sources.

Application

• Semiconductor Manufacturing: Key precursor for the chemical vapor deposition (CVD) or atomic layer deposition (ALD) of high-k germanium oxide (GeO₂) dielectric layers and germanium-containing films.
• Optical Fiber Production: Used in modified chemical vapor deposition (MCVD) processes to dope silica glass, enhancing the refractive index profile for core and cladding layers.
• Advanced Ceramics & Glasses: A sol-gel processing agent for creating germanium-doped ceramics and specialty glasses with unique thermal and optical properties.
• Catalysis Research: Acts as a catalyst or catalyst support precursor in organic synthesis and polymerization reactions.
• Nanomaterial Synthesis: Serves as a germanium source for the controlled synthesis of germanium nanoparticles and nanowires.
• Photonics & IR Optics: Used in the fabrication of germanium-based coatings and components for infrared (IR) optical systems.

Basic Information

Product Name	Tetraethoxygermane
CAS No.	1465-55-0
Molecular Formula	C8H20GeO4
Molecular Weight	236.84 g/mol
Synonyms	Germanium(IV) ethoxide; Tetraethyl germanate; Tetraethyl orthogermanate; Germanium tetraethoxide; Ethyl germanate; Tetraethoxygermanium; Ge(OEt)4
EINECS	215-975-3

Quality Control

Our Tetraethoxygermane is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and physical property verification, to ensure it meets the exacting standards required for electronic and optical applications. A Certificate of Analysis (COA) detailing purity, metal impurities, and other critical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Density (20°C)	1.10 - 1.12 g/cm³
Refractive Index (n20D)	1.405 - 1.415
Moisture (Karl Fischer)	≤ 0.1%
Metal Impurities (ICP-MS)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.