In the article below we present a small introduction to the topic of black gunpowder. Basic information about the production process was described, and several pyrotechnic issues, because the popular propeller used for black -root weapons, is also (or maybe especially) used in pyrotechnics.
Gunpowder (po angielsku black powder), It is probably the oldest explosive discovered by man.
He reaches with its pedigree until the 9th century China, Who knows - maybe further?
It was used practically as the only explosive, and thriving until the mid -nineteenth century. Currently, however, it was denied from the military sphere by modern sneakers, such as nitrocellulose. It is still successfully used in the production of spectacular pyrotechnics products, as well as for charging replicas of historic firearms - most often resort, But this is not the rule.
Black dust as an explosive classifies to the so -called. brootive explosives.
Composition:
Saletra Potasowa(KNO3), sulfur, charcoal.
The most frequently given weight recipe for gunpowder black pyrotechnic is:
– 75% KNO3 – Azotan(V)Potassium
– 15% Charcoal
– 10% S - sulfur
There are also volume proportions, admittedly less used than the weight due to low accuracy, but still used sometimes by pyrotechnics.
Volume proportions:
5,5/2,5/2 – Co daje nam:
– 5,5 J.
– 2,5 J.
– 2,0 J ob.* Sulfur
J seconds. * – jednostka objętości, np. "Liters".
The dust itself burns quickly with a bright-orange flame, Isk, However, there would be an explosion, It should be closed in a relatively tight and hard body - in the case of firecrackers it is a thick cardboard, albo sklejone ze sobą warstwy papieru. (By no means the metal bodies are used for this!) Dopiero w szczelnym korpusie dochodzi do kumulacji gazów powstających podczas spalania prochu i rozerwania korpusu pod wpływem szybkiego narostu ciśnienia w nim – czemu oczywiście towarzyszy efekt akustyczny i wizualny w postaci huku i błysku.
Black gunpowder intended for throwing firearms is beats, Because the compacted dust burns slightly less "aggressively", thanks to which he does not tear the barrel of a given weapon, but as a result of its combustion, it is still possible to accumulate gases throwing the bullet. There is no distance between the missile and the thrust material, because it could be broken, or the discreening of the barrel as a result of gases accumulation.
Of course, we gave the composition and proportions only for information purposes, They are generally available on many pages on the web, That's why there was no point in skipping them. We do not persuade, we do not encourage the production of gunpowder or any pyrotechnic materials. Apart from the legal problem - an inefficient approach to the matter can cost us dearly.
