2006-11-27 11:17:01 · 2 answers · asked by miss_marta_may:]]]] 1 in Science & Mathematics ➔ Chemistry
When salts of different metals are burned, they produce different colors. So, fireworks use metals to produce different colors.
2006-11-27 11:20:44 · answer #1 · answered by hcbiochem 7 · 2⤊ 0⤋
distinctive steel produce distinctive colours in the time of combustion. The salt crystals are in many circumstances labored right into a paste of a speedy-burning, yet not explosive variety of the gunpowder. Being a great pellet, it burns the colour of the combusting steel. The paste could be wrapped around a center of explosive gunpowder granules, to offer that function crackle of the Roman Candle. the whole Roman Candle is started with the ignition of a plug of a applicable paste/steel salt blend. an easy blend is saltpetre and sulphur, which produces a yellow spray of sparks. It additionally explodes under violent compression, so a mix of the saltpetre/sulphur granules and gunpowder produces a touch surprising explosive cloud. The paste, of direction, is permitted to dry, certainly, formerly insertion in the firework.
2016-12-29 14:17:49 · answer #2 · answered by ? 3 · 0⤊ 0⤋