Aluminum, Magnesium, Titanium, etc. Link below has a good explanation.
Aloha
2006-09-15 04:26:36
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answer #1
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answered by Anonymous
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Colors in fireworks are usually generated by pyrotechnic stars–usually just called stars–which produce intense light when ignited. Stars contain four basic types of ingredients.
A fuel which allows the star to burn
An oxidizer—a compound which produces (usually) oxygen to support the combustion of the fuel
Color-producing chemicals
A binder which holds the pellet together.
Some of the more common color-producing compounds are tabulated here. The color of a compound in a firework will be the same as its color in a flame test (shown at right). Not all compounds that produce a colored flame are appropriate for coloring fireworks, however. Ideal colorants will produce a pure, intense color when present in moderate concentration.
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Color Metal Example compounds::>
Red:
Strontium (intense red)
Lithium (medium red)
SrCO3 (strontium carbonate)
Li2CO3 (lithium carbonate)
Orange:
Calcium CaCl2 (calcium chloride)
Yellow:
Sodium NaNO3 (sodium nitrate)
Green:
Barium BaCl+ (barium chloride ions)
Blue:
Copper halides CuCl (copper chloride), at low temperature
Purple:
potassium KNO3 (potassium nitrate)
Gold:
Charcoal, iron, or lampblack
White:
Titanium, aluminum, or magnesium powders
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The brightest stars, often called Mag Stars, are actually fueled by Aluminum. Magnesium is rarely used in the Fireworks Industry due to its ability to easily form a protective oxide layer. Often an alloy of both metals called Magnallium is used.
2006-09-15 11:31:51
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answer #2
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answered by Anonymous
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The chemicals used in the firework create the different colours - such as magnesium or sulphur, the same as with street lamps producing blue/white light or yellow. Too many to list.
What I would like to know is - where do the sounds come from - not the bangs - the screaming noises!
2006-09-16 07:51:34
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answer #3
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answered by Anonymous
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The dazzling colours of fireworks are due to metal compounds and use the same principle as flame tests: metals are vaporised and excited by the high temperatures, emitting characteristic colours
Compound Colour produced
Copper(II) acetoarsenate Blue
Copper(I) chloride Turquoise
Cryolite Yellow
Sodium salts Yellow
Lithium carbonate Red
Strontium nitrate Brilliant red
Barium carbonate Green
Barium chloride Bright green
2006-09-15 11:22:47
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answer #4
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answered by Nutty Girl 7
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Copper(II) acetoarsenate Blue
Copper(I) chloride Turquoise
Cryolite Yellow
Sodium salts Yellow
Lithium carbonate Red
Strontium nitrate Brilliant red
Barium carbonate Green
Barium chloride Bright green
wow a staff cool. lol x
2006-09-16 10:44:25
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answer #5
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answered by xxx-chocaholic-xxx 2
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It's to do which with chemicals are mixed with the gunpowder in the firework. For instance: if you mix sodium - gou get yellow; pottasium would give a purple flame; cobalt would be blue. Different chemicals give a different colour. for more info either do GCSE Chemistry (not double science) or look at http://en.wikipedia.org
2006-09-16 18:41:49
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answer #6
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answered by kendroche@btinternet.com 1
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Fireworks are coloured by using different chemicals when mixing the gunpowder and sounds are also made this way ie adding aluminium causes the flicker effect
2006-09-15 14:08:39
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answer #7
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answered by birdseye1362 1
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different amounts and combinations ,of chemicals,
cause the varied colours and effects of fireworks.
The ancient Chinese discovered ways of producing spectacular effect with special combinations of chemicals with a gun-powder propellant ,
>^,,^<
2006-09-17 08:21:23
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answer #8
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answered by sweet-cookie 6
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Squinting your eyes and shaking your head violently makes fireworks and most other moving objects different colours
2006-09-15 14:21:16
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answer #9
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answered by Useless 5
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Due to use of substances producing light of different wavelength when fired up.
2006-09-15 11:31:23
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answer #10
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answered by Pitambri 3
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