What is a characteristic of the Sodium Bicarbonate Extinguisher?

Sodium bicarbonate extinguishers are known for their effectiveness in combating certain types of fires, particularly those involving flammable liquids and electrical fires. One key characteristic of sodium bicarbonate is that it produces a dry powder that can be corrosive and may leave a residue that requires cleaning after use. This residue can potentially damage certain surfaces if not removed properly.

The other characteristics of sodium bicarbonate extinguishers highlight their effectiveness on specific types of fires and their modes of operation that do not align with the option selected. For instance, while it is useful on electrical fires, it is not designed to be noncorrosive; proper management and cleanup after use are necessary to maintain equipment and surfaces.