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    Belousov-Zhabotinskii Reaction

    Materials

    600ml Beaker

    Magnetic Stir Plate

    Magnetic Stir Bar

    Premeaured Solutions (A, B , C, D, E and F)

    Solutions

    Solution A: 0.5M Potassium Bromate (KBrO3) 150ml ( 41.8g in 500ml DI water)

    Solution B 6M Sulfuric Acid 15ml (84.2 ml in 250ml Di water)

    Solution C: 0.5M Malonic acid 62.5ml (13g in 250ml DI water)
    Solution D 0.5M Potassium Bromide (KBr) 25ml (6g in 100ml DI water)

    Solution D: 0.019M Cerium Ammonium nitrate (Ce(NH4)2 (NO3)6) in 2.7M Sulfuric Acid (H2SO4)

    62.5ml (112ml of 3M H2SO4, dilute to 250ml with DI water + 2.6g Cerium Ammonium Nitrate

    Solution F: Ferroin Indicator 25ml

    Procedure

    1. Add solutions A,B, and C into a 600ml beaker with a magnetic stirrer. Stir for atleast 5 minutes. (Color change from a dark yellow to light yellow will be observed.
    2. Add solutions D,E and F then stir for 30 seconds.
    3. Color changes from green to purple to rusty red to blink of blue (if you blink you miss the blue) and finally back to gorgeous green. Cycle takes ~1 min, with the cycle lengthening with time.

    Waste Management

    Return to dispensary for proper disposal


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