Germane

Title: Germane
CAS Registry Number: 7782-65-2
Additional Names: Germanium hydride
Molecular Formula: GeH4
Molecular Weight: 76.67
Percent Composition: Ge 94.74%, H 5.26%
Literature References: Prepd by the action of lithium aluminum hydride on a germanium halide in ether soln: Finholt et al., J. Am. Chem. Soc. 69, 2692 (1947); by reduction of GeO2 by sodium hydoborate: Griffiths, Inorg. Chem. 2, 375 (1963).
Properties: Colorless gas. mp -165°, bp -90°, d4-142 1.523. Slightly sol in hot hydrochloric acid, dec in nitric acid.
Melting point: mp -165°
Boiling point: bp -90°
Density: d4-142 1.523
CAUTION: Potential symptoms of overexposure are malaise, headache, giddiness, fainting; dyspnea; nausea, vomiting; kidney injury; hemolytic effects. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 150.
Germanium Dichloride Germanium Dioxide Germanium Tetrachloride Germanium Tetrafluoride Germine

For other meanings see germane.
Germanium tetrahydride
Structural formula of germane
Ball-and-stick model of the germane molecule Space-filling model of the germane molecule
Identifiers
CAS number 7782-65-2 YesY
PubChem 23984
ChemSpider 22420 YesY
UN number 2192
KEGG C15472 YesY
ChEBI CHEBI:30443 YesY
RTECS number LY4900000
Jmol-3D images Image 1
Properties
Molecular formula GeH4
Molar mass 76.62 g/mol1
Appearance Colorless gas
Density 3.3 kg/m3 gas
Melting point −165 °C (108 K)
Boiling point −88 °C (185 K)
Solubility in water low
Structure
Molecular shape Tetrahedral
Dipole moment O D
Hazards
MSDS ICSC 1244
EU Index Not listed
Main hazards Toxic, flammable
NFPA 704
NFPA 704.svg
4
4
3
Related compounds
Related compounds Methane
Silane
Stannane
Plumbane
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Germane is the chemical compound with the formula GeH4, and the germanium analogue of methane. It is the simplest germanium hydride and one of the most useful compounds of germanium. Like the related compounds silane and methane, germane is tetrahedral. It burns in air to produce GeO2 and water.