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GERMANIUM(IV) ETHOXIDE

CAS No.
14165-55-0
Chemical Name:
GERMANIUM(IV) ETHOXIDE
Synonyms
GERMANIUM ETHYLATE;GERMANIUM ETHOXIDE;TETRAETHOXYGERMANE;TETRAETHYOXYGERMANE;Ethyl germanate(IV);Ethyl orthogermanate;TETRAETHOXYGERMANIUM;GermaniumEthylsulfate;Germanium(IV)-ethylat;TETRAMETHOXYGERMANIUM
CBNumber:
CB4683885
Molecular Formula:
C8H20GeO4
Molecular Weight:
252.88
MDL Number:
MFCD00015121
MOL File:
14165-55-0.mol
MSDS File:
SDS
Last updated:2024-07-05 16:40:08

GERMANIUM(IV) ETHOXIDE Properties

Melting point -72°C
Boiling point 185-6°C
Density 1.14 g/mL at 25 °C(lit.)
refractive index n20/D 1.407(lit.)
Flash point 121 °F
form Liquid
Specific Gravity 1.134
color Colorless
Water Solubility Soluble in anhydrous alcohol and benzene. Hydrolyzes in water
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
Sensitive Moisture Sensitive
BRN 3661173
CAS DataBase Reference 14165-55-0(CAS DataBase Reference)
EPA Substance Registry System Ethanol, germanium(4+) salt (14165-55-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS02,GHS07
Signal word  Warning
Hazard statements  H226-H315-H319-H335
Precautionary statements  P210-P302+P352-P305+P351+P338
Hazard Codes  T,Xi
Risk Statements  10-36/37/38-23/24/25
Safety Statements  26-36-45-36/37/39-27-16
RIDADR  UN 1993 3/PG 3
WGK Germany  3
10-21
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  2905190019
NFPA 704
2
3 0

GERMANIUM(IV) ETHOXIDE price More Price(23)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 339180 Germanium(IV) ethoxide ≥99.95% trace metals basis 14165-55-0 5g $184 2024-03-01 Buy
Sigma-Aldrich 339180 Germanium(IV) ethoxide ≥99.95% trace metals basis 14165-55-0 25g $614 2024-03-01 Buy
Alfa Aesar 014679 Germanium(IV) ethoxide, 97% 14165-55-0 5g $132 2024-03-01 Buy
Alfa Aesar 014679 Germanium(IV) ethoxide, 97% 14165-55-0 1g $38.6 2023-06-20 Buy
Strem Chemicals 93-3206 Germanium(IV) ethoxide (99.99+%-Ge) PURATREM 14165-55-0 1g $45 2024-03-01 Buy
Product number Packaging Price Buy
339180 5g $184 Buy
339180 25g $614 Buy
014679 5g $132 Buy
014679 1g $38.6 Buy
93-3206 1g $45 Buy

GERMANIUM(IV) ETHOXIDE Chemical Properties,Uses,Production

Chemical Properties

Water-clear liquid. B.p. 186°C. Hydrolyzes easily, yielding GeO2.

Uses

It is a sol-gel intermediate for optical fibers and photosensitive.

Preparation

A solution of 9.8 g. of metallic sodium in a considerable excess of absolute alcohol is prepared. A solution of 20 g. of GeCl4 in absolute ether is added with stirring and exclusion of moisture. The mixture is refluxed for several hours and then decanted from the NaCl which separates. The solid is washed with absolute ether. The washings are combined with the main solution and the solvent is then driven off in vacuum. Finally, the tetraethoxygermane is distilled. It is redistilled at atmospheric pressure.

Purification Methods

Distil it through a 10cm Vigreux column (p 11) under reduced pressure. Alternatively distil it through a Fenske glass helices (p 11) column fitted with a total condensation variable take-off stillhead. Fractionate it under reduced pressure using a reflux ratio of 10:1. [Johnson & Fritz J Am Chem Soc 75 718 1953, Bradley J Chem Soc 4916 1956, Beilstein 1 IV 1308.]

GERMANIUM(IV) ETHOXIDE Preparation Products And Raw materials

Raw materials

Preparation Products

GERMANIUM(IV) ETHOXIDE Suppliers

Global( 73)Suppliers
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GERMANIUM ETHOXIDE GERMANIUM ETHYLATE GERMANIUM(IV) ETHOXIDE GERMANIUM TETRAETHOXIDE Germanium(IV)ethoxide, 99.95+% TETRAETHYOXYGERMANE Germanium(IV) ethoxide, 99.995% (metals basis) Orthogermanic acid tetraethyl ester Tetraethoxygermanium(IV) germanium(Ⅳ) ethoxide GermaniumEthylsulfate ethanol,germanium(4+)salt Germanium(IV) Ethoxide 98% Ethyl alcohol germanium(4+) salt Ethyl germanate(IV) Ethyl orthogermanate Germanium(IV) ethoxide/ 99.995% TETRAETHOXYGERMANE, 99.999% Germanium(IV) ethoxide >=99.95% trace metals basis Germanium(IV) ethoxide, 99.9995% trace metals basis germanicacidtetraethylester Germanium(IV)-ethylat tetraethylorthogermanate TETRAETHOXYGERMANE TETRAETHOXYGERMANIUM TETRAMETHOXYGERMANIUM Germanium (IV) ethoxide (99.99+%-Ge) PURATREM Germanium(IV) ethylate~Tetraethoxygermanium Germaniumethoxidemetalsbasiscolorlessliq GermaniumethoxideTetraethoxygermane germanium(4+) ethanolate Germanium(IV) ethoxide, 99.95+% metals basis Germanium(Ⅳ) Ethoxide, 99.9% GERMANIUM(IV) ETHOXIDE ISO 9001:2015 REACH Germanium(IV) ethoxide, 97%, 14165-55-0 4C2H5OGe C8H20GeO4 C8H20O4Ge GeOC2H54 C2H6O14Ge Catalysis and Inorganic Chemistry metal alkoxide