When dealing with metal fires, which type of powder is utilized for extinguishing?

When addressing metal fires, the appropriate extinguishing agent is a special powder, often referred to as a dry chemical designed specifically for suppressing fires fueled by combustible metals such as magnesium, aluminum, or titanium. These metals burn at extremely high temperatures and can ignite easily, producing a vigorous reaction with water and certain other common extinguishing agents.

Special powders, often made from substances like sodium chloride or graphite, work by smothering the fire and creating a barrier between the burning metal and the oxygen in the air. They can also absorb heat from the fire, effectively lowering the temperature to extinguish the flames. This is crucial, as water-based extinguishers and foam extinguishers can react violently with metal fires, leading to explosions or further spreading of the fire. Therefore, using the correct type of powder is vital for the safe and effective suppression of metal fires.