Food Dyes Lab Report

Finding the Food Dye in The Purple Powerade and Remaking the Solution.

Jared Fry

Team Members: Kennedy Heidel, Lexi Morley, Lily Nixa.

CHEM1065 Lab (TA: Hyeokjung Kim).

Submission Date: 4/11/2024.

Spring Semester 2024

Abstract: This is an experiment purpose is to be able to find the unknown dyes that are in the purple Powerade. Take those unknown dyes, find the concentrations of those dyes that make up the purple powder. Then create a solution to match the absorption and wavelength of the purple Powerade on the spectrometer. For finding the unknown dyes of the purple Powerade, Blue 1, Blue 2, Red 3, and Red 40 will be tested using the spectrometer to determine which one’s are in the purple Powerade. Finding that Red 40 and

The recreated spectrum being (green) is almost identical to the original purple Powerade spectrum being (purple). The trend of the spectrum is around the same absorbance at each point and wavelength. These results were obtained by retesting the original purple Powerade in the spectrometer. Test the recreated solution by mixing the concentrations of both Red 40 and Blue 1 dye. Then add in 76.5 mL of distilled water for Red 40 and 85.2 mL for Blue 1 dye to recreate the original solution. The results of this portion qualitatively are the original purple Powerade, and the recreated experimental solutions are near identical in color. Discussion: In (Table 1) and (Table 2), the importance of having the calibration curve is to be able to find the concentration of the original solution. For (Table 3), the importance of comparing both the original purple Powerade solution spectrum with the experimental solution spectrum is to be able to see if you recreated the original solution properly. In more detail in (Table 1) and (Table 2), the importance of figuring out the concentration is to be able to get the correct absorption and wavelength values when testing the solution in the spectrometer. Having the information of wavelength and absorption helps narrow down the options of what dyes are in the original drink. How the spectrometer physically measures

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