| Identification | More | [Name]
GERMANIUM(IV) ETHOXIDE | [CAS]
14165-55-0 | [Synonyms]
GERMANIUM ETHOXIDE
GERMANIUM ETHYLATE
GERMANIUM(IV) ETHOXIDE
GERMANIUM TETRAETHOXIDE
TETRAETHOXYGERMANE
TETRAETHOXYGERMANIUM
TETRAMETHOXYGERMANIUM
ethanol,germanium(4+)salt
germanicacidtetraethylester
Germanium(IV)-ethylat
tetraethylorthogermanate
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, 99.95+%
GermaniumEthylsulfate
TETRAETHYOXYGERMANE | [EINECS(EC#)]
238-007-8 | [Molecular Formula]
C8H20GeO4 | [MDL Number]
MFCD00015121 | [Molecular Weight]
252.88 | [MOL File]
14165-55-0.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colorless to very light yellow liquid | [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.)
| [Fp ]
121 °F
| [form ]
Liquid | [color ]
Colorless | [Specific Gravity]
1.134 | [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 Data | Back Directory | [Hazard Codes ]
T,Xi | [Risk Statements ]
R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S27:Take off immediately all contaminated clothing .
S16:Keep away from sources of ignition-No smoking . | [RIDADR ]
UN 1993 3/PG 3
| [WGK Germany ]
3
| [F ]
10-21 | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
2905190019 |
| Hazard Information | Back Directory | [Chemical Properties]
clear colorless to very light yellow liquid | [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.] |
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