FIRE EXTINGUISHING COMPOSITION Russian patent published in 2004 - IPC

FIELD: fire fighting, particularly fire-extinguishing powders to suppress of classes B, C, D and E fires.

SUBSTANCE: fire-extinguishing powder includes alkali metal chloride or alkali-earth metal chloride, fluidity-increasing additive, namely alkali-earth metal carbonates, mixture thereof with graphite and/or with concentrated nepheline or mixture of graphite with concentrated nepheline. Powder also has anti-caking additive, namely hydrophobic silica dioxide. All above components are taken in following amounts: anti-caking additive is 1.5 - 4.5 % by weight, fluidity-increasing additive is 5.0 - 15.0% by weight, remainder - fire-extinguishing agent.

EFFECT: increased efficiency, reduced corrosion activity to materials.

2 dwg, 1 dwg