To create a rainbow flame effect, a variety of metal salts can be used, each producing a specific color when burned. Here are some common chemicals associated with different flame colors:
1. **Red Flame**:
- Strontium salts (e.g., strontium carbonate or strontium nitrate)
- Lithium compounds (such as lithium chloride)
2. **Orange Flame**:
- Sodium compounds (e.g., sodium chloride, sodium bicarbonate)
3. **Yellow Flame**:
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