Trockenlöschpulver

Trockenlöschpulver, often abbreviated as "Pulver", refers to a type of extinguishing agent used in fire extinguishers. It is a dry chemical powder composed of finely ground inorganic salts, such as monoammonium phosphate, sodium bicarbonate, or potassium bicarbonate. These powders are non-conductive and can be used on various classes of fires, including Class A (ordinary combustibles), Class B (flammable liquids and gases), and Class C (electrical fires). Some specific formulations are designed for Class D fires involving combustible metals.

When discharged, the powder forms a barrier between the fuel and the oxygen, interrupting the combustion process. Certain components also have a chemical effect that inhibits the chain reaction of the fire. The effectiveness of Trockenlöschpulver depends on the specific type of powder and the class of fire it is used against. While highly versatile, its use can create significant dust clouds, potentially obscuring vision and requiring cleanup after use. It is a common choice for general-purpose fire extinguishers found in vehicles, homes, and businesses. The color of the powder can vary depending on its composition, but it is typically off-white or light yellow.