Nitrogen ^N₂

Hazard pictograms

Nitrogen is the dominant component of Earth’s atmosphere, making up about 78% of the air. The gas, with the chemical formula N2, is colorless, odorless, and tasteless at room temperature and pressure.

Nitrogen is used in various industrial processes as a cooling gas and inert gas to protect materials from oxidation or degradation. It is also used in laboratories and educational institutions, such as in physics classrooms. In the event of a nitrogen leak, the gas can displace the oxygen in the air, creating a suffocation hazard. Symptoms of nitrogen exposure include headaches, dizziness, difficulty breathing, and, in severe cases, respiratory arrest.

To ensure a healthy and safe workplace, it is crucial to be aware of the specific risks associated with nitrogen and to implement appropriate safety measures.