Fire extinguishing composition
AssigneeKidde-Fenwal, LLC
InventorsStephanie C. Thomas, Chad Powell, Anne C. Regina
Life of this patent
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Abstract
A fire extinguishing composition is provided that is suitable for use as a fire extinguishing agent in fire suppression, particularly in off-road vehicles exposed to low ambient temperature environments. The fire extinguishing composition includes an aqueous solution of potassium formate. In an embodiment, the fire extinguishing composition includes an aqueous solution of potassium formate and an aqueous film forming foam. In an embodiment, the fire extinguishing composition is an aqueous solution including an aqueous film forming foam, potassium formate and potassium acetate in water.
Claims15
A fire extinguishing composition comprising an aqueous solution of an aqueous film forming foam, potassium formate and potassium acetate in water, wherein the potassium formate is present in an amount of about 10-60 weight %, and the potassium acetate is present in an amount of about 10-59 weight %.
An aqueous film forming solution fire extinguishing composition consisting essentially of:
- potassium formate in an amount of about 20 weight %;
- potassium acetate in an amount of about 25 weight %;
- tetrasodium EDTA in an amount of about 2.1 weight %;
- a hydrocarbon surfactant in an amount of about 0.5 weight %;
- a fluorosurfactant in an amount of about 0.33 weight %;
- a foam booster in an amount of about 0.5 weight %;
- a biocide in an amount of about 0.5 weight %;
- a corrosion inhibitor in a trace amount;
- water to form an aqueous solution, the water in an amount of about 51 weight %;
- and acetic acid in a amount sufficient to impart a relatively neutral pH to the aqueous solution.
Dependencies are inferred from the claim text.