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Now the manufacturer uses the sulphur powder and the potassium hypochlorite and the aluminite powder response is more violent, the might is bigger dangerously.
Black powder manufacture and detonation principle
First grinds the sulfur and the carbon, then mixes up the niter, adds the Water Classic die machine-pressed Large expanse of to twist again garrulously.
The black powder burns rapidly the detonation release massive gas and the energy, the pressure which the gas produces may impel the air to send out explodes the sound.
Namely the niter being heated decomposition produces the oxygen, with the sulfur, the carbon function produces the sulphur dioxide and the carbon dioxide separately, still had the nitrogen, the potassium sulfate….Products.
Is loaded with two groups of black powder in the smoke and fire launcher tube, the black powder probably is 75% potassium nitrate, 15% carbon and 10% sulfur.
The first group of black powder goal is pushes up the fireworks the nighttime sky lift-off approximately hundred meters -odd, the second group of black powder uses for to light the medicine ball, in each medicine ball has three drugs:
Oxidant: Perchloric acid potassium or potassium chlorate
Fuel: Has naturally, like carbon, sulfur, magnesium, aluminum…..; Or synthesis, like polyvinyl-chloride (PVC).
The coloring agent is the metallic element or the compound: The smoke and fire bright with many colors decision matches the good metal or the compound burning color after the interior: Strontium compound -> red, calcium compound -> orange, sodium compound -> yellow, barium compound -> green, copper compound -> blue color, potassium compounds -> purple, aluminum or magnesium metal -> white, ferrous metal -> golden yellow.
A launcher tube internal installation round flame, joins the blasting fuse, as soon as again joins the power source, the switch presses the rapid ignition smoke and fire, after in the smoke and fire medicine ball receives the black powder the ignition, the potassium chlorate decomposition has produced the free chlorine atom, the chlorine atom again body metal atomic reaction production electron excited state member, these high energy member is very unstable, approximately 10 second instantaneous returns ground states, unnecessary energy liberation exactly in visible wavelength scope.
Its equation is as follows:
Cl+Cu→CuCl2 (blue light)
Cl+Ba→BaCl2 (green light)
Uses the above photochemical reaction, the smoke and fire manufacturer may make very many red, white, green, the loose skinned orange….And so on multi-colored smoke and fire. For example: The oxidant uses the potassium chlorate, the fuel to use the magnesium, the coloring agent to use the barium chlorate, may produce the green flame. If uses the perchloric acid potassium and the aluminum, the sulfur mix detonation sound can especially big.