a metal whose oxide is reduced to the metal by thermal decomposition
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metal peroxides, such as barium peroxide and lithium peroxide also release oxygen upon heating:
2BaO2−→−−−−−T = 700 °C2BaO+O2
2BaOX2→T = 700 °C2BaO+OX2
This was once used to produce pure oxygen.
2Li2O2−→−−−−−T = 195 °C2Li2O+O2
2LiX2OX2→T = 195 °C2LiX2O+OX2
On the other hand, some, if not most metal oxides are extremely heat resistant.
Once sintered at temperatures between 1700 and 2000 °C, magnesium oxide (MgOMgO) can be heated up to its melting point (~ 2800 °C) without decomposition and can thus be used as a lining for heat sensors.
2BaO2−→−−−−−T = 700 °C2BaO+O2
2BaOX2→T = 700 °C2BaO+OX2
This was once used to produce pure oxygen.
2Li2O2−→−−−−−T = 195 °C2Li2O+O2
2LiX2OX2→T = 195 °C2LiX2O+OX2
On the other hand, some, if not most metal oxides are extremely heat resistant.
Once sintered at temperatures between 1700 and 2000 °C, magnesium oxide (MgOMgO) can be heated up to its melting point (~ 2800 °C) without decomposition and can thus be used as a lining for heat sensors.
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