Abstract
The world considers environmental concerns a top-notch priority and strictly finds ecofriendly ways to bring transformations. The widely used class of fire extinguishers, halons, has been extensively used for decades until they were acknowledged for producing hazardous components like HF, HCl, HBr, and COF2 and causing ozone depletion. This creates a surge in the search for a competent substitute with reduced toxins, easing the environmental burden. So, this review discusses the significance of halons, their existence, phase-out, and alternate substitutes in detail. To reduce ozone depletion potential and global warming potential, the Montreal Protocol announced a ban on halons and promoted the search for its replacements by either introducing the use of HFCs and perfluorocarbons having zero ODP, or modifying them by gelling them with dry powders, gelling agents, surfactants, and antiflatulents. The thorough composition of gelled halocarbons proposed as efficient fire extinguishant alternatives is also disclosed here.
