GERMANIUM(IV) ETHOXIDE
- Product Name
- 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
- Formula Weight
- 252.88
- MOL File
- 14165-55-0.mol
GERMANIUM(IV) ETHOXIDE Property
- 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
- color
- Colorless
- Specific Gravity
- 1.134
- Water Solubility
- Soluble in anhydrous alcohol and benzene. Hydrolyzes in water
- Sensitive
- Moisture Sensitive
- Hydrolytic Sensitivity
- 7: reacts slowly with moisture/water
- BRN
- 3661173
- CAS DataBase Reference
- 14165-55-0(CAS DataBase Reference)
- EPA Substance Registry System
- Ethanol, germanium(4+) salt (14165-55-0)
Safety
- 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
- F
- 10-21
- TSCA
- Yes
- HazardClass
- 3
- PackingGroup
- III
- HS Code
- 2905190019
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 339180
- Product name
- Germanium(IV) ethoxide
- Purity
- ≥99.95% trace metals basis
- Packaging
- 5g
- Price
- $184
- Updated
- 2024/03/01
- Product number
- 339180
- Product name
- Germanium(IV) ethoxide
- Purity
- ≥99.95% trace metals basis
- Packaging
- 25g
- Price
- $614
- Updated
- 2024/03/01
- Product number
- 014679
- Product name
- Germanium(IV) ethoxide, 97%
- Packaging
- 5g
- Price
- $132
- Updated
- 2024/03/01
- Product number
- 014679
- Product name
- Germanium(IV) ethoxide, 97%
- Packaging
- 1g
- Price
- $38.6
- Updated
- 2023/06/20
- Product number
- 93-3206
- Product name
- Germanium(IV) ethoxide (99.99+%-Ge) PURATREM
- Packaging
- 1g
- Price
- $45
- Updated
- 2024/03/01
GERMANIUM(IV) ETHOXIDE Chemical Properties,Usage,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
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