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What
gives colour to the firecrackers?
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Red
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Strontium salts (Nitrates, carbonates and sulphates
of strontium)
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Orange
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Calcium salts (Carbonates, chlorides and sulphates
of calcium)
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Yellow
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Sodium salts ( Nitrates and oxalates of sodium)
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Green
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Barium salts (Nitrates, carbonates, chlorides and
chlorates of barium)
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Blue
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Copper salts (Carbonates and oxides of copper)
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Purple
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A combination of copper and strontium compounds
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White
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The burning of metals like magnesium, aluminium and
titanium)
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