Ammonium itself doesn't have a boiling point. Here's why:

* Ammonium (NH₄⁺) is a positively charged ion. It's not a standalone molecule. You won't find ammonium existing on its own.

* Ammonium salts have boiling points. Ammonium forms salts when it combines with negatively charged ions (anions), such as chloride (Cl⁻) to form ammonium chloride (NH₄Cl). These salts do have boiling points, but they vary widely depending on the specific anion involved.

For example:

* Ammonium chloride (NH₄Cl) has a boiling point of 520 °C (968 °F).

* Ammonium nitrate (NH₄NO₃) decomposes before it reaches its boiling point.

Let me know if you have any more questions!