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Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
Chemistry of lipstick (2)
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Chemistry of lipstick (2)

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  • 1. LipstickKatie Monsor
  • 2. Summary-Lipstick has been used since the timeof the Egyptians-Over the centuries chemists have beenimproving the formula for lipstick-Requirements chemists must meet:melting,sweating, long-lastingEosin, the red pigment in lipsticks.Gray=Carbon, Red=Oxygen, Brown=Bromine.
  • 3. 3 Main Processes:1. Foundation2.Coloring Agents3. AdditivesChemistry
  • 4. -Oil is most commonly used in lip-coloringsince it does not mix with water-Castor oil is the main oil used inlipstick-Castor oil is thick and will helpthe lipstick to last longer
  • 5. -Chemists use Carnauba wax in lipstick so that it will not melt-Carnauba wax has a melting point of 85 degrees Celsius-Waxes can be sticky so chemists mixthe waxes with isopropyl myristateand other esters-This creates a smooth substancewhen applied to the lips
  • 6. -Chemists use different dyes to create the right shades oflipstick-Dyes can be soluble in water. This causes problems with salivaand the oils.-Chemists must create dyes that are insoluble in water and oil-Most dyes are combined with metal oxides-These dyes are colorless until they are mixed with the aminoacids in the lips
  • 7. -Other dyes are mixed with white aluminum oxide-After this process the dyes are mixed with other solutions thatcreate a precipitate-Equation: Soluble Dye + Precipitate Insoluble Lake-Lake: A water-soluble dye that is combined with othercompounds that are insoluble and colorless→
  • 8. -The insoluble lake is then mixed with the castor oil. Which areground and mixed together.-After further mixing, the oil and lake mixture forms asuspension. The suspension is then mixed with other ingredientsneeded for lipstick.-The lake method helps the lipstick color to last longer and is amuch stronger, bolder color
  • 9. Works CitedNova. "Putting on a Good Face." Australian Academy of Science.Nova, n.d. Web. 2010.<http://www.science.org.au/nova/083/083key.html>.Senese, Fred. "What is the chemical composition of lipstick?"Chemistry of Everyday Life: n. pag. General Chemistry Online.Web. 2010.<http://antoine.frostburg.edu/chem/senese/101/consumer/faq/lipst ick-composition.shtml>.Sibley, Lynn. "Lipstick" ["Agyptishes Museum andPapyrussamming"]. Agyptishes Museum and Papyrussamming:8-11. Print.
  • 10. Video

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