FIRE EXTINGUISHING POWDER COMPOSITION Russian patent published in 2020 - IPC A62D1/00 

FIELD: fire-fighting equipment.

SUBSTANCE: invention relates to the field of fire extinguishing, namely to the fire extinguishing powder composition of general purpose for class A, B, C, E fire extinguishing. Fire extinguishing powder composition contains halite, hydrophobisator, ammonium hydro- and dihydrogen phosphates, finely dispersed amorphous silicon dioxide, and caking-reducing and fluidity-improving additive used is phosphogypsum - a by-product of production of chemical enterprises, with the following ratio of components, wt. %: halite 32÷24, phosphogypsum 62÷56, ammonium hydro- and di-hydrophosphates 5÷15, water repellent 0.9÷4.5, finely dispersed amorphous silicon dioxide 0.1÷0.5.

EFFECT: technical result consists in improvement of fire-fighting capacity of powdered composition when extinguishing both indoors and outdoors, improved consumer characteristics: lower moisture absorption and caking, higher fluidity, as well as wider range of available materials used as active components of fire-extinguishing powder formulations.

1 cl, 1 tbl