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Cleaning with F oo d

Cleaning with F oo d. IRS Project by Lee Vint Ve. Contents. 1. About My research. -Research Topic -Background Information -Reason For Topic. 2. The Experiment. -Steps for the Experiment -Sample. 3. Results. - Results of the experiment - Analysis.

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Cleaning with F oo d

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  1. Cleaning with Food IRS Project by Lee Vint Ve

  2. Contents 1. About My research -Research Topic -Background Information -Reason For Topic 2. The Experiment -Steps for the Experiment -Sample 3. Results -Results of the experiment -Analysis 4. Conclusions and Acknowledgements -Conclusion of experiments -References -Special Thanks

  3. About My Research 1. My Research Topic My project is about household substitutes for dishwashing liquid/ detergent on grease (cooking oil stains) on tupperware. Objective: - To find the best household substitute for detergent - To help make cleaning grease easier Testing Liquids: -Diluted lemon juice (citric acid) -Baking soda solution -Coca-Cola (phosphoric acid) -Sprite (citric acid) -Vinegar (ethanoic acid) Reason of selecting above liquids: -The acids found in these foodstuffs have been known to be used in commercial detergent and other cleaning agents.

  4. 2. Background information • Science: • - Ability of certain weak acids to break down and remove grease stains off surfaces. 3. Reason For this topic - I have been constantly hearing the rumour that coca-cola has cleaning properties, even seeing it being mentioned on the popular documentary series Mythbusters. - Made me wonder about cleaning properties in other foodstuff and how it can be applied into real-life applications and to make dishwashing easier.

  5. The Experiment 1. Steps for the Experiment Scrub Test 1. Pour a spoonful of cooking oil (grease) and rub it on the surface of the tupperware 2. Pour 100ml of the testing liquid (listed below) into the container 3. Use a sponge and scrub the tupperware for exactly 60 seconds 4. Remove the remaining testing liquid in the container 5. Use pieces of tissue paper to rub the remaining grease off, then recorded the results Soak Test 6. Repeat step 1 and 2, with the same amount of grease but 500ml of testing liquid 7. Leave the set-ups for 24 hours 8. Repeat steps 4 and 5 2. Sample Scrub Test: Soak Test: 100ml of coca-cola 500ml of coca-cola 100ml of diluted lemon juice 500ml of diluted lemon juice 100ml of vinegar 500ml of vinegar 100ml of baking soda solution 500ml of baking soda solution 100ml of pepsi 500ml of pepsi 100ml of sprite 500ml of sprite 100ml of water (control experiment) 500ml of water 100ml of detergent (comparison) 500ml of detergent

  6. Results Of Experiment

  7. Results Of Experiment

  8. 1. Analysis • - Diluted lemon juice is the best household substitute for dishwashing liquid • - The baking soda solution worked well during the soak test but did not fare as well during my scrub test. My hypothesis for this is that the baking soda took a longer time to react and mix with the water and with the grease, but I did not give it time to do so. • - The baking soda might have done better if given time to mix with the water and higher temperature speeds this up, therefore the possible need of heated water. • Coca-Cola had up to some extent cleaning properties, but has not proven to be an effective cleaning agent and did badly compared to the rest. • Although Coca-Cola and Pepsi have vast amounts of acid in them, the cleaning abilities are less than lemon and Sprite’s because the cleaning ability of phosphoric acid in Coca-Colais much lower than the citric acid which is found in lemons and Sprite.

  9. Conclusion & Acknowledgements 1. Conclusion of Experiment Foods containing citric acid are the most effective (In citrus fruits) Ethanoic acid is next (in vinegar) Phosphoric acid is last (in Coca-Cola and Sprite) - Lemon Juice is the best substitute due to its extremely high concentration of citric acid. 2. References Wikipedia(2010) Citric Acid- Wikipedia, the free Encyclopedia [online]. Available from http://en.wikipedia.org/wiki/Citric_acid. Accessed on 5 July 2010. MizkanAmericas,inc(2010) Vinegar Tips: Cleaning with vinegar [online]. Available from http://www.vinegartips.com/scripts/pageViewSec.asp?id=7. Accessed on 10 July 2010. T. Zeigler(2000) Coke: A Household Cleaner[online]. Available from http://urbanlegends.about.com/library/bl_coca_cola.htm . Accessed on 10 July 2010 Break The Chain(2003) Break The Chain-Have a Coke and have a Snarl[online]. Available from http://www.breakthechain.org/exclusives/coke.html . Accessed on 23 June 2010. Wikipedia(2010) Bile- Wikipedia, the free Encyclopedia [online]. Available from http://en.wikipedia.org/wiki/Bile. Accessed on 10 September. Mallinckrodt Baker, Inc. (2010) PHOSPHORIC ACID [online]. Available from http://www.jtbaker.com/msds/englishhtml/p3973.htm. Accessed 15 August Special thanks: I would also like to thank my teacher mentors Mrs Esther Koh and Mrs Koh Yong Yong for their support, and my parents for helping me in the experiment .

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