The above chemical equation describes the thermodynamic decomposition process of manganese nitrate (Mn(NO3)2) to form manganese dioxide (MnO2), nitrogen dioxide (NO2), and oxygen (O2).
- Reaction conditions:
This reaction occurs as the temperature increases. The necessary temperature to start the reaction is usually around 300 degrees Celsius.
- Reaction process:
When manganese nitrate is heated, it decomposes to form manganese dioxide, nitrogen dioxide, and oxygen. This is a thermodynamic decomposition process, in which one substance decomposes into several other substances when heated.
- Phenomena that occur:
When the reaction occurs, one can see the change in color of the mixture as the most apparent phenomenon. Manganese nitrate is pale pink or white while manganese dioxide is black-brown. In addition, when heated, the distinctive smell of nitrogen dioxide can be detected.