Bleach Baby Bleach!

Overview

Objectives/Goals My objective was to find which solution gets rid of grape juice stains the best: oxygen bleach, chlorine bleach, vinegar, or water. Methods/Materials I poured a controled amount of purple grape juice onto 15 pieces of cotton towel, let the pieces dry, soaked them in the proper amount of each solution for 30 minutes, rinsed them for 30 seconds, squeezed the water out, and let them dry. Finally, I compared the remaining stains to a special grid scaled 1 to 10 (10 being bad and 1 being good) to see what score they got. My materials were a measuring cup, measuring dropper, undiluted chlorine bleach, oxygen bleach, apple ciider vinegar, water, a cotten towel, cups, wax paper, and purple grape juice. Results Chlorine Bleach socred the best with an average score of 1. Oxygen Bleach came in second with an average score of 2.5. Vinegar came in third with an average score of 6. Water came in last with an average score of 7. Conclusions/Discussion I thought that Oxygen Bleach would do the best because it is supposed to do well with organic stains, and grape juice is organic. Instead, Oxygen Bleach came in second. Chlorine Bleach came in first-I guess that is why they use it to wash clothes. The only issue with Chlorine Bleach is that it got rid of some of the permanent marker, so unless it is diluted, it shouldn't be used with colored clothes.

Competition history

• CSEF 2006 Chemistry · Entry J0532

Resources

• CSEF project summary ↗

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