Why is it important for firefighters to have knowledge about chemical reactivity?

Understanding chemical reactivity is crucial for firefighters because it directly informs their strategy for extinguishing and controlling fires. When responding to hazardous materials incidents, firefighters need to be aware of how various substances interact with each other and with water or firefighting agents. This knowledge helps them determine the safest and most effective method to suppress a fire, mitigate risks of explosions, and protect themselves and the public from toxic fumes and reactions.

Knowing which chemicals may react violently when mixed with water or other agents allows firefighters to make informed choices about their approach, ensuring that they do not inadvertently escalate the situation. For example, certain flammable liquids may require specific types of foam or dry chemical extinguishing agents rather than water. Therefore, familiarity with chemical reactivity not only enhances firefighter safety but also increases the likelihood of a successful response to hazardous situations.