PYROTECHNIC COMPOSITION OF BLACK SMOKE Russian patent published in 2015 - IPC C06D3/00 C06B29/08 

FIELD: blasting operations.

SUBSTANCE: pyrotechnic composition of black smoke comprises, wt %: oxidiser - potassium chlorate 53-58, fuel - smoke generator - as crude coal-bearing anthracene with the content of anthracene oil of 2-5 wt % 40-43 and thiourea 2-4.

EFFECT: increase in the burning rate of 2-3 times, in comparison with the prototype, and the dynamics of smoke generation, and also formation of sustainable rich black cloud typical for seat of fire, which enables to use it as a simulator during filming.