It's a very fast powder. It is used to create firecrackers.
Recommended by PIROTECNICA OFFLIMITS
KNO3 - 50%
Sulfur - 25%
Dark Aluminium (Al 90%, Mg 6%, Charcoal 4%) - 25%
It's a very dangerous substance, sensitive to small sparks and unstable,
it is advised not handle it
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