The answer……………..yes there is. Great progress for the lesson portion of the internship.
Yesterday we were able to produce a simple aqueous extraction of cilantro. Filtered and centrifuged the extraction to remove any impurities, which can be seen below:
After purifying the extraction then we placed it to a test.
In Sample 4 we have iron chloride and potassium thiocyanate, which produces a nice bright red color due to the thiocyanate reacting with the free iron atoms in solution. Sample 5 was conducted by adding the iron chloride and the extract at once. The potassium thiocyanate was introduced to the sample and no color change.
Sample 6 was conducted by adding the iron solution and potassium thiocyanate producing a color change as seen in Sample 4 (bright red). Once the extract was introduced to the sample it produced a color change resulting as the one in Sample 5. Thus, demonstrating the chelating properties of Cilantro. Tomorrow I will be posting a video of these results. So excited to see this occur. Until tomorrow.
This Awesome!!! I you got it to work and move to the next phase of your lesson planning.