Additional Properties
- Einecs Number 238-007-8
- Synonyms GERMANIUM ETHOXIDE
- HMIS 2-2-1-X
- Molecular Formula C8H20GeO4
- Molecular Weight (g/mol) 252.84
- Purity (%) 97%
- TSCA Yes
- Delta H Vaporization (kJ/mol) 10.3 kcal/mole
- Boiling Point (˚C/mmHg) 185-186
- Density (g/mL) 1.134
- Flash Point (˚C) 62 °C
- Melting Point (˚C) -72°
- Refractive Index @ 20˚C 1.4049
- Additional Viscosity (cSt) '1.2, 20
- Viscosity at 25 ˚C (cSt) 1.2
Application
Sol-gel intermediate for optical fiber preforms,1 and monoliths.2,3
Forms GeO2 by PCVD.4
Incorporation into SiO2 interlayer dielectric / passivation reduces reflow temp.5
Sol-gel derived SiO2-GeO2 glasses are photosensitive / high-pressure H2 loading.6,7
Reacts with H2S, sulfur, water to form semiconductor germanium disulfide.8
Reference
1. Matsuo, N. et al. Chem. Abstr. 105, 10766e; German Patent 3,535,367, 1986.
2. Mukherjee, S. Mater. Res. Soc. Symp. Proc. 1984, 32, 111.
3. Mukherjee, S. Mater. Res. Soc. Symp. Proc. 1986, 73, 443.
4. Secrist, D. et al. Bull. Am. Ceram. Soc. 1966, 45, 784.
5. Fisher, S. et al. Solid State Tech., p55, September, 1993.
6. Czekaj, C. et al. Amer. Chem. Soc. Meeting, August 1994.
7. Green, B. et al. J. Non-Cryst. Solids 1994, 168, 195.
8. Etsell, T. et al. J. Mater. Chem. 1997, 7, 105.
Safety
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Germanium Compounds
