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soap

soap. The chemical reaction of a fatty acid with an alkali metal hydroxide. The cleansing action of soap comes from its unique ability to surround oil particles, causing them to be dispersed in water and easily rinsed away. Historically, soap was made by:

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soap

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  1. soap • The chemical reaction of a fatty acid with an alkali metal hydroxide. • The cleansing action of soap comes from its unique ability to surround oil particles, causing them to be dispersed in water and easily rinsed away. • Historically, soap was made by: • Soaking wood ash in water to make lye (common name for NaOH) • Adding animal fat (beef tallow or pig lard) • Castille soap is made from vegetable fat http://science.jrank.org/pages/6214/Soap.html

  2. Chemical Reactions

  3. Atoms in a chemical reaction NaOH + HCl → NaCl + H2O Na H O H Cl

  4. factors in chemical reaction

  5. the heat is on lab Follow the instructions to complete the sodium hydroxide (NaOH) lab

  6. Exothermic Reactions

  7. (greek) pertaining to heat Exo: (greek) outside Thermic:

  8. the gummy bear lab

  9. not just a piece of candy Lakeland Elementary School: A visiting high school student and several younger students suffered minor injuries this morning when a test tube with a gummy bear candy and liquid inside it burst during a classroom demonstration Onteora High School: Donald Bucher was demonstrating an experiment with the chemical potassium chlorate when the explosion — which was strong enough to damage a window in the classroom — occurred.

  10. Bhopal, India In 1984, it had 700,000 inhabitants. Today, there are about 1.2 million.

  11. At midnight Dec 3, 1984 water entered the tank, containing 43 tonnes of methyl isocyanate (MIC). This caused an exothermic reaction. A toxic gas cloud descended upon the city. Eckerman, Ingrid: ppt presentation 2010

  12. Dead: • Approximately 16,000 during first weeks • At least 8,000 died since • Permanent injuries: • 100,000 – 200,000 • Water & air contamination lead to • birth defects, • reproductive health problems, • liver failure, • & cancer • The water is still contaminated 520,000 people exposed Eckerman, Ingrid: ppt presentation 2010

  13. Green Chemistry Principles

  14. What Can be Done? • How does this translate into an educational opportunity? • Highlight available tools/alternatives to make chemistry more green. • Solvent Guide • Reagent guide • Alternative methodologies

  15. The Challenge: How we make shampoo now Your brilliant alternative shampoo process of the future

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