MULTIPURPOSE AQUEOUS FIRE-EXTINGUISHING COMPOSITION Russian patent published in 2004 - IPC

FIELD: fire-fighting equipment, particularly composition for extinguishing of combustible solid, liquid and gaseous material fires and fires of electrical equipment under the tension up to 1000 volts. SUBSTANCE: fire-extinguishing composition includes urea, antifreeze, passivating additive, anticorrosion additive, surface-active agent and water with predetermined ratio of mixture. Passivation additive is selected from sodium bichromicum or sodium benzonate. Anti- corrosive additive is potassium bichromicum. EFFECT: expanded functionality, improved efficiency of person and items protection against fire harmful effects, increased service life without deterioration of properties up to 4.5-5 years, improved economy, possibility of composition properties retention after unfreezing thereof, simplified production, non-toxicity. 7 cl, 3 ex