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Fireworks
Chemistry of Fireworks The sights and sounds of each explosion are the result of several chemical reactions – oxidations and reductions – taking place within the firework as it ascends into the sky. Oxidizers produce the oxygen gas required to burn the mixture of reducing agents and to excite the atoms of the light-emitting compounds. Various oxidizers are used in both the black powder and the stars. The most commonly used oxidizers are nitrates, chlorates, and perchlorates. The reducing agents, sulfur and carbon, combine with the oxygen from the oxidizers to produce the energy of the explosion.

Oxidanți produc oxigen necesar pentru a arde amestecul dintre agenții de reducere și pentru a excita atomii emițători de lumină.

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Diferiti oxidanti sunt folositi in producerea pulberei negre si a stelelor. Oxidantii frecvent utilizati sunt nitrati, clorati si perclorati. Agentii reducatori sulf si carbon se combina cu oxigenul de la oxidare pentru a produce energe exploziei.

The most commonly used oxidizers are nitrates, the major component of black powder. Nitrates are composed of nitrate ions (NO3-) with metal ions. The most common oxidizer is potassium nitrate, which decomposes to potassium oxide, nitrogen gas, and oxygen gas.

Oxidantii utilizati cel mai frecvent sunt nitratii, componenta majora a pulberii negre. Nitratii sunt compusi din ioni nitrati (NO3-) cu ioni metalici. Oxidantul cel mai comun este azotatul de potasiu care se ddescompune in oxid de potasiu, azot, oxigen/

When reacting, nitrates release two of their three oxygen atoms. Because the oxidation does not result in the release of all available oxygen, the reaction is not as vigorous as that of other oxidizers and is more controlled. This is why nitrates are used as the major component of black powder. In fireworks their main purpose is to provide the initial thrust to power the package into the sky and to ignite

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