180 likes | 222 Views
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:
E N D
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 (Microsoft Clipart) http://science.jrank.org/pages/6214/Soap.html
Chemical Reactions Creative Commons
By 2012rc (Own work Notes and font fixed:The Photographer) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
Atoms in a chemical reaction NaOH + HCl → NaCl + H2O Na H O H Cl
factors in chemical reaction http://3o318-physics-carcollisions.blogspot.com/ https://en.wikipedia.org/wiki/File:Energizer_Bunny.png http://arcadianhome.com/blog/tag/light-fixtures/page/5
the heat is on lab Follow the instructions to complete the sodium hydroxide (NaOH) lab By Lucasbosch (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
Exothermic Reactions Creative Commons
(greek) pertaining to heat Exo: By Hi-Res Images of Chemical Elements (http://images-of-elements.com/oxygen.php) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons (greek) outside Thermic:
the gummy bear lab By Thomas Rosenau (Own work) [CC BY-SA 2.5 (http://creativecommons.org/licenses/by-sa/2.5)], via Wikimedia Commons
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.
Bhopal, India In 1984, it had 700,000 inhabitants. Today, there are about 1.2 million. http://upload.wikimedia.org/wikipedia/de/archive/b/ba/20031128162539%21India_map.png
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
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 By Simone.lippi at it.wikipedia [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], from Wikimedia Commons 520,000 people exposed Eckerman, Ingrid: ppt presentation 2010 Bhopal disaster memorial, By: Luca Frediani, Creative Commons
Green Chemistry Principles http://www.clipartof.com/interior_wall_decor/details/Cartoon-Injured-Guy-Using-A-Laptop-In-A-Wheelchair-Poster-Art-Print-439307 <!-- Size: 140 px -- ><a href="http://www.clker.com/cliparts/d/2/c/4/1242250250578182939Hazard_T.svg.thumb.png"><img src='http://www.clker.com/cliparts/d/2/c/4/1242250250578182939Hazard_T.svg.thumb.png' alt='Hazard Sign clip art'/></a>
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
The Challenge: <script type="text/javascript" src="http://www.freefoto.com/imagelink/?ffid=904-11-1898&s=s" ></script> How we make shampoo now Your brilliant alternative shampoo process of the future