Question

what are used by Fireworks to create different colour​

Answer 1

Answer:

The colors in fireworks are created by the use of metal salts.

• Metal salts commonly used in firework displays include:
• strontium carbonate (red fireworks), calcium chloride (orange fireworks), sodium nitrate (yellow fireworks), barium chloride (green fireworks) and copper chloride (blue fireworks).

Answer 2

Answer:

When chemicals present in the fireworks composition get heated, the ions emit characteristic wavelengths or colors of light. This works much like the flame test a method used to identify a substance by its color in a flame.

Metal ions are responsible for common colors.

1. Red - Strontium salts, Lithium salts e.g. Lithium carbonate
2. Orange - Calcium salts e.g. Calcium chloride, Calcium sulfate
3. Green - Barium compounds + Chlorine producer
4. Blue - Copper compounds + Chlorine producer
5. Purple - Mixture of Strontium (red) and Copper (blue) compounds
6. Silver - Burning Aluminum, Titanium, or Magnesium powder or flakes
7. Gold - Incandescence of iron (with carbon), charcoal, or lampblack
8. Yellow - Sodium compounds e.g. sodium nitrate,

Explanation:

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