Common Environmental Reactions
Magnesium exists in the upper atmosphere in a variety of different molecular forms. Due to its ability to react with common oxygen and simple carbon-oxygen compounds the magnesium may exist in oxidized compounds including MgO2, OMgO2, MgO, and O2MgO2.
- MgCO3 + O → MgO2 + CO2
- OMgO2 + O → MgO2 + O2
- MgO + O3 → MgO2 + O2
- MgO2 + O2 → O2MgO2
- MgO2 + O → MgO + O2
In contact with water it decomposes by the reactions:
- MgO2 + 2 H2O → Mg(OH)2 + H2O2
- 2 H2O2 → 2 H2O + O2
Read more about this topic: Magnesium Peroxide
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