Environmentally-clean biodegradable water-based concentrates for producing fire inhibiting and fire extinguishing liquids and foams for fighting class a and class b fires

An aqueous-based fire extinguishing liquid concentrate for mixing with a prespecified quantity of water to produce a fire extinguishing liquid solution that produces good immediate extinguishing effects when applied to extinguish a burning or smoldering fire, and very good long-term fire inhibiting effects when being proactively applied to protect combustible surfaces against the threat of fire, said aqueous-based fire extinguishing liquid concentrate comprises:

• a dispersing agent realized in the form of a quantity of water, for dispersing metal ions dissolved in water;
• a fire inhibiting agent in the form of at least one alkali metal salt of a nonpolymeric saturated carboxylic acid, for providing metal ions dispersed in the water when the at least one alkali metal salt is dissolved in said quantity of water;
• and
• a dispersing agent in the form of an organic compound containing three carboxylic acid groups Or salt/ester derivatives thereof, such as triethyl citrate, an ester of citric acid, for dispersing the metal ions in said quantity of water, and lowering the surface tension of the liquid solution formed by said fire inhibiting agent, and said dispersing agent dissolved in said quantity of water, and forming of a fire extinguishing liquid solution that produces good immediate extinguishing effects when applied to extinguish a burning or smoldering fire, and very good long-term fire inhibiting effects when being proactively applied to protect combustible surfaces against the threat of fire.