- Creation Date: September 28, 2012
Crystal Violet appears as a violet color at a pH above 3.2. However, the hydroxide ion present in waters attacks the central carbon atom to create products that are colorless. Therefore, as the reaction proceeds, the violet color of the solution will disappear.
I propose as an experiment / visual demonstration using solutions with different hydroxide molarities. The color of the solution will disappear faster as the concentration of the hydroxide ion increases. I will use the spectrum from a UV-Vis spectrophotometer to demonstrate how the concentration of Crystal Violet can be measured and how its degradation can be confirmed. I will animate how the electrons move through the structure and will also calculate the reaction rate of the process from the experimental data (presented in a similar style to the Khan videos)