The colours of the fire crackers are extracted from the elements of the salt of *
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Red-strontium salts, lithium salts.
Orange- calcium salts.
Gold-incandescence of iron (with carbon), charcoal, or lampblack.
Yellow-sodium compounds.
White-white-hot metal, such as magnesium or aluminum.
Green-barium compounds + chlorine producer,copper.
Blue-copper compounds + chlorine producer.
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