This equation describes the decomposition reaction of mercury(II) sulfate (HgSO4) into mercury(II) oxide (HgO), sulfur dioxide (SO2), and oxygen (O2). This reaction is a pyrolysis decomposition reaction, meaning it requires high temperatures to break down the original compound into the products.
- Reaction conditions:
This reaction requires a high temperature (around 500 degrees Celsius) to activate. In addition, there are no special requirements regarding pressure or environmental conditions.
- Reaction process:
When mercury(II) sulfate is heated, it decomposes into mercury(II) oxide, sulfur dioxide, and oxygen. Mercury(II) oxide is a red or reddish-brown solid, while sulfur dioxide and oxygen are both gases.
- Occurrences in the reaction:
During the reaction, one can observe the color change from the white color of mercury(II) sulfate to the red or reddish-brown color of mercury(II) oxide. Additionally, you will see the release of sulfur dioxide and oxygen gases. Sulfur dioxide has a distinctive unpleasant smell and can irritate the eyes and respiratory tract.