BoilingPoint:185-6°
EINECSNumber:238-007-8
MeltingPoint:-72°
MolecularWeight:252.84
AlternativeName:GERMANIUMETHOXIDE
SpecificGravity:1.134
Flashpoint:62°C(144°F)
HMISKey:2-2-1-X
Formula:C8H20GeO4
RefractiveIndex:1.4049
TSCA:TSCA
Application:Sol-gelintermediateforopticalfiberpreforms,1andmonoliths.2,3
FormsGeO2byPCVD.4
IncorporationintoSiO2interlayerdielectric/passivationreducesreflowtemp.5
Sol-gelderivedSiO2-GeO2glassesarephotosensitive/high-pressureH2loADIng.6,7
ReactswithH2S,sulfur,watertoformsemiconductorgermaniumdisulfide.8
Reference:1.Matsuo,N.etal.Chem.Abstr.105,10766e;GermanPatent3,535,367,1986.
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.etal.Bull.Am.Ceram.Soc.1966,45,784.
5.Fisher,S.etal.SolidStateTech.,p55,September,1993.
6.Czekaj,C.etal.Amer.Chem.Soc.Meeting,August1994.
7.Green,B.etal.J.Non-Cryst.Solids1994,168,195.
8.Etsell,T.etal.J.Mater.Chem.1997,7,105.
AdditionalProperties:Dipolemoment:1.7debye
Surfacetension,25?:23.2dynes/cm?Hcomb:-1
?Hvap:10.3kcal/mole>99.99%(metalsbasis)
Vaporpressure
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