What is a characteristic of ammonium nitrite?

Ammonium nitrite is known for its tendency to decompose when heated, breaking down into nitrogen gas and water. This characteristic makes it important in various chemical processes where controlled reactions are needed. The decomposition reaction occurs as ammonium nitrite is thermally unstable, which is consistent with many nitrite compounds that can lose their nitrogen content when subjected to heat.

The other characteristics listed do not accurately apply to ammonium nitrite. It is not particularly stable; rather, it is reactive and can decompose rapidly under specific conditions. Additionally, ammonium nitrite does not have a high boiling point because it decomposes before reaching its boiling point. Regarding safety, ammonium nitrite is not safe for human consumption; it can be toxic and pose health risks if ingested. Thus, the decomposition property is a defining feature of ammonium nitrite, highlighting its reactivity and instability under heat.