Tag: Fire suppression

Originally developed in the early 20th century, protein foam was the first mass-produced firefighting foam, relying on natural hydrolyzed proteins to create a thick, stable blanket for extinguishing Class B fires. This specialized agent remains a key tool in fire safety due to its excellent heat and burnback resistance.

First developed by the U.S. Naval Research Laboratory in 1959, Purple K was created as a superior alternative to sodium bicarbonate for extinguishing flammable liquid fires. The "K" in Purple K stands for potassium, derived from the chemical symbol 'K' on the periodic table. The agent, composed primarily of potassium bicarbonate, is colored violet to distinguish it from other dry chemical agents and to denote its superior effectiveness.