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Courtesy of Wikipedia
Yes, it's accurate.
For informational purposes only, of course.
DO NOT use potassium chlorate. Too unstable. Use potassium perchlorate.
Aluminum powder and potassium perchlorate make up the only two components of the pyrotechnic industry standard flash powder. It provides a great balance of stability and power, and is the composition used in most commercial exploding fireworks.
The balanced equation for the reaction is:
3 KClO4 + 8 Al → 4 Al2O3 + 3 KCl
Although not stoichiometrically balanced, a ratio of seven parts Potassium Perchlorate to three parts Dark Pyro Aluminum is the composition used by most pyrotechnicians. However, a ratio of 2 mass units Potassium Perchlorate to 1 mass unit Dark Pyro Aluminum is closer to stoichiometric, and may produce a louder bang.
For best results, the aluminum powder should be "Dark Pyro" grade, with a flake particle shape, and a particle size of less than 10 microns. The KClO4 should be impalpable dust, though its particle size is not as critical as that of the Al powder.
Although this composition is fairly insensitive, it should be treated with care and respect. Hobbyist pyrotechnicians usually use a method called diapering, in which the materials are poured separately onto a large piece of paper, which is then folded up at the corners and gently rocked back and forth until the chemicals are thoroughly mixed. Professionally, automated systems are used to achieve the same result. Large quantities should never be mixed in a single batch. Care must be taken to prevent any electrostatic discharge or friction during mixing or handing, as these may cause accidental ignition.
edit: remember, it's really hard to drive without fingers or eyes.
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