Germanium monoxide
| Names | |
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IUPAC name
germanium(II) oxide
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| Other names
germanous oxide
germanous acid |
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| Identifiers | |
20619-16-3 
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| ECHA InfoCard | 100.039.914 |
| PubChem | 6327639 |
| Properties | |
| GeO | |
| Molar mass | 88.6394 g/mol |
| −28.8·10−6 cm3/mol | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Germanium monoxide, GeO, is a chemical compound of germanium and oxygen. It can be prepared as a yellow sublimate at 1000 °C by reacting GeO2 with Ge metal. The yellow sublimate turns brown on heating at 650 °C. GeO is not well characterised. It is amphoteric dissolving in acids to form germanium(II) salts and in alkali to form "trihydroxogermanates" or "germanites" containing the Ge(OH)3− ion.
Germanium oxide decomposes to Ge and GeO2.
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