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SMOKE BOMB. Materials . Potassium nitrate Sugar (sucrose or table sugar) Chemicals Used to Color Flames. Red - strontium salts Orange - calcium chloride Yellow - sodium nitrate Green - barium salts, such as barium nitrate. Apparatus. Hotplate Satay Stick Aluminum foil Lighter Mould
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Materials • Potassium nitrate • Sugar (sucrose or table sugar) • Chemicals Used to Color Flames
Red - strontium salts • Orange - calcium chloride Yellow - sodium nitrate • Green - barium salts, such as barium nitrate
Apparatus • Hotplate • Satay Stick • Aluminum foil • Lighter • Mould • Wick • Lighter
Procedures • Add sugar to potassium nitrate in the ratio of 2:3 on a piece of aluminum foil. • Add chemical that colour the flame, sparingly. • Heat the mixture on a hotplate on low heat. • Stir the mixture well using a satay stick.
When the mixture turned brown, take it off the heat and wrap the mixture with that aluminum foil. • When it has hardened – takes about 10minutes – light it up and coloured flames will be produced.
Chemistry Behind • Sugar – fuel • Potassium nitrate- oxidizer • Salt- organic dye • 48NaNO3 + 5C12H22O11- 60CO2 + 55H2O + 24N2 + 24Na2O