filmov
tv
Briggs-Rauscher reaction - 'The Oscillating Clock'
Показать описание
The Briggs-Rauscher reaction, also known as 'the oscillating clock', is one of the most common demonstrations of a chemical oscillator reaction. The reaction begins when three colorless solutions are mixed together. The color of the resulting mixture will oscillate between clear, amber, and deep blue for about 3-5 minutes. The solution ends up as a blue-black mixture.
Solution A:
Add 43 g potassium iodate (KIO3) to ~800 mL distilled water. Stir in 4.5 mL sulfuric acid (H2SO4). Continue stirring until the potassium iodate is dissolved. Dilute to 1 L.
Solution B:
Add 15.6 g malonic acid (HOOCCH2COOH) and 3.4 g manganese sulfate monohydrate (MnSO4 . H2O) to ~800 mL distilled water. Add 4 g of vitex starch. Stir until dissolved. Dilute to 1 L.
Solution C:
Dilute 400 mL of 30% hydrogen peroxide (H2O2) to 1 L.
1. Pour 300 mL each of solutions A and B into a large beaker.
2. Turn on the stirring plate. Adjust the speed to produce a large vortex.
3. Add 300 mL of solution C into the beaker. Be sure to add solution C after mixing solutions A + B or else the demonstration will not work. Enjoy!
Wear safety goggles and gloves and perform the demonstration in a well-ventilated room, preferably under a ventilation hood. Use care when preparing the solutions, as the chemicals include strong irritants and oxidizing agents.
Solution A:
Add 43 g potassium iodate (KIO3) to ~800 mL distilled water. Stir in 4.5 mL sulfuric acid (H2SO4). Continue stirring until the potassium iodate is dissolved. Dilute to 1 L.
Solution B:
Add 15.6 g malonic acid (HOOCCH2COOH) and 3.4 g manganese sulfate monohydrate (MnSO4 . H2O) to ~800 mL distilled water. Add 4 g of vitex starch. Stir until dissolved. Dilute to 1 L.
Solution C:
Dilute 400 mL of 30% hydrogen peroxide (H2O2) to 1 L.
1. Pour 300 mL each of solutions A and B into a large beaker.
2. Turn on the stirring plate. Adjust the speed to produce a large vortex.
3. Add 300 mL of solution C into the beaker. Be sure to add solution C after mixing solutions A + B or else the demonstration will not work. Enjoy!
Wear safety goggles and gloves and perform the demonstration in a well-ventilated room, preferably under a ventilation hood. Use care when preparing the solutions, as the chemicals include strong irritants and oxidizing agents.
0:18:03
Recreating the Briggs-Rauscher oscillating reaction
0:04:20
Briggs-Rauscher Reaction | MIT Chemistry Behind the Magic
0:01:12
Briggs-Rauscher reaction - 'The Oscillating Clock'
0:08:29
The Briggs-Rausher Oscillating Reaction (Tutorial and Explanation)
0:05:56
Oscillating magic – the Briggs–Rauscher oscillating reaction
0:04:16
Chemical Clock, Briggs-Rauscher oscillating Reaction!
0:01:36
The Briggs-Rausher Oscillating Reaction (Demonstration)
0:00:08
Briggs-Rauscher Oscillating Reaction
0:01:00
Briggs Rauscher, the coolest oscillating reaction #shorts
0:00:48
Oscillating Clock Reaction #chemicalreaction #chemistry
0:07:19
Briggs-Rauscher Oscillating Reaction Explained, Extended Real Time Video
0:04:56
Oscillating reactions - Briggs Rauscher BR method
0:01:09
The Briggs–Rauscher oscillating reaction
0:00:45
Oscilador de Briggs Rauscher #Shorts
0:04:38
Oszillierende Zeitreaktion - Briggs-Rauscher Reaktion [𝟰𝗞] | JJChemistry
0:01:00
This reaction is hard to find
0:01:18
Briggs-Rauscher Oscillating Reaction
0:01:02
Exploiting Briggs-Rauscher Reaction for Oscillating Clock Reaction
0:01:00
This is one of the weirdest reactions I've ever seen
0:02:02
Oscillating Reaction Demo
0:07:00
Briggs-Rauscher Oscillating Chemical Reaction
0:02:39
Mystery: What is causing the Briggs-Rauscher Reaction to oscillate?
0:01:44
Briggs Rauscher Oscillating Chemical Reaction
0:00:55
Briggs Rauscher Oscillating Reaction
Комментарии