Reactions with waterReactions with air
GeO2(s)|
Compounds | Reactions | Production
|
| Reactions of Germanium |
| Reactions with water |
| The thin oxide layer renders germanium more or less inert to water. |
| Reactions with air |
| The surface of lumps of germanium is protected by a very thin layer of germanium dioxide. At red heat, germanium reacts with oxygen in air to from germanium dioxide. |
| Ge(s) + O2(g)GeO2(s) |
| Reduction Potentials | |
| Balanced half-reaction | E0 / V |
Ge2+ + 2e- Ge(s) |
+0.00 |
| GeO2(s) + 4H+ + 2e-Ge2+ + 2H2O
|
-0.25 |
| GeO2(s) + 4H+ + 4e-Ge + 2H2O
|
-0.01 |
| H2GeO3 + 4H+ + 4e-Ge(s) + 3H2O
|
-0.13 |
| GeO(s) + 2H+ + 2e-Ge(s) + H2O
|
-0.29 |