Potassium bicarbonate is a dry chemical agent considered to be twice as effective as

Potassium bicarbonate is a dry chemical agent considered to be twice as effective as
A . Asodium bicarbonate.
B . monoammonium phosphate.
C . sodium chloride.
D . potassium sulfide.

View Answer

Answer: A

Explanation:

Potassium bicarbonate is a dry chemical agent that is considered to be twice as effective as sodium bicarbonate in fire suppression, especially for Class B fires involving flammable liquids and gases. This is because potassium bicarbonate has a higher melting point and a lower decomposition temperature than sodium bicarbonate, which allows it to form a more stable and insulating layer on the burning surface. Potassium bicarbonate also has a lower pH and a higher specific gravity than sodium bicarbonate, which enhances its penetration and dispersion abilities123.

References: Dry Chemical Agents – Purple-K Powder is Purple – Chemguard; Evaluation of Dry Chemical Fire Extinguishing Standards – NFPA; Potassium bicarbonate – Wikipedia.