FIELD: fire-fighting, particularly explosion-protective and fire-extinguishing equipment.
SUBSTANCE: powder composition comprises active fire-extinguishing components, namely water-insoluble inorganic salt crystalline hydrate or crystalline hydrate mixture taken in amount of 90.0-97.8% by weight and additive taken in amount of 2.2-10.0% by weight. The additive is adapted to change fire-extinguishing powder service properties. Bound water content in crystalline hydrate is 25-62% by weight.
EFFECT: increased fire-extinguishing ability and extended range of materials suitable to be used as active fire-extinguishing powder components.
3 cl, 2 dwg, 2 tbl, 12 ex
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