What type of fire involves materials such as magnesium and sodium?

The distinction of Class D fires lies in their specific involvement of combustible metals, including magnesium and sodium. These materials are classified as Class D because they ignite and burn at high temperatures, presenting unique challenges in firefighting efforts. Standard extinguishing agents used for other classes of fires, such as water or foam, can react violently with these metals, making it essential for firefighters to use specialized extinguishing agents designed for metal fires, such as dry powder agents specifically formulated for Class D. Recognizing this classification is critical for effective response and safety during a fire incident involving such materials.