2. Summary
To Maintain our clothes clean!
Soap & Detergent
These surfactant help water spread and wet
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3. Inside of Soap
Made of Fat & Oil by mixing them with Alkali.
Fat & Oil makes Fatty acid - attach to oil
Stay in form of NaOH and KOH
Makes loosened dirt rise away immediately.
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4. Demerits of Soap
Works bad With Hard water - it produce scum
Makes fabrics feel stiff
Allow Dirt lifted from cloth to redeposit on clothes
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5. Inside of Detergent
Petrochemicals - hydrocarbon, attach with oil and
grease
Other chemicals that likes water
Two reactions - Anionic and nonionic,
Anionic = New acid + Alkali
Nonionic = Fatty Alcohol + Ethylene acid
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6. Merits of Detergent
It covers every drawback of soap
Works good on Hard Water
Prevents redeposit from cloth
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7. #Energy to clean cloth
Chemical Energy - Energy provided by soap and
detergent.
Thermal Energy - Energy provided by hot water
Mechanical Energy - Energy provided by Machine
or hands
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8. How does it work?
Surfactant in soap & detergent both have water-
loving part and water-hate part.
They attach to both oil stain and water, split each
other from cloth
Enzyme helps this progress
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9. Work Cited
“The Chemistry of Cleaning Clothes.” Howstuffworks. N.p., 25 Aug.
2009. Web. 13 Apr. 2014. <http://science.howstuffworks.com/the-
chemistry-of-cleaning-clothes-info.htm>.
Gardner, Jeff. “The Chemistry of Cleaning Clothes.” PlanetLaundary.
N.p., 27 June 2011. Web. 13 Apr. 2014. <http://
www.planetlaundry.com/store-operations/2011/chemistry-cleaning-
clothes>.
“Soaps & Detergents: Chemistry.” AmericanCleaningInstitute. N.p.,
n.d. Web. 13 Apr. 2014. <http://www.cleaninginstitute.org/
clean_living/soaps__detergents_chemistry.aspx>.
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