How Does The Boiling Point Of Sodium Hydrosulfite Compare To Other Sulfites Or Sulfur Compounds?

Sodium hydrosulfite's boiling point is approximately 90°C, which is lower than most other sulfites or sulfur compounds. For example, sulfur dioxide's boiling point is -10°C, sodium sulfite's boiling point is around 340°C, and sulfur trioxide's boiling point is around 45°C. This is due to the relatively small size of the sodium hydrosulfite molecule, which results in weaker intermolecular forces between its molecules compared to larger sulfur compounds. As a result, less energy is required to overcome these weak forces and bring the molecules to a boil, resulting in a lower boiling point.