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“ Tis the Season to be GREEN. Welcome to the Science Symposium. UNH Manchester Tuesday, December 15 th , 2009 3-5pm. Handouts. Printouts of all these text slides are available for those interested.
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“Tis the Season to be GREEN Welcome to the Science Symposium UNH Manchester Tuesday, December 15th, 2009 3-5pm
Handouts • Printouts of all these text slides are available for those interested. • Pictures in this presentation are from from parts of student projects – ask a student team to find out more!
Project Description • Students in Dr. Sarah Prescott Kenick’s Organic Chemistry class used the principles and practice of Green Chemistry to attempt to “green” a high school or college chemistry laboratory activity. • Student results are displayed via the use of online wikis, a free, easy to use, dynamic online platform to create websites.
What is Green Chemistry? • Green chemistry is the utilization of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products • The emphasis is on eliminating hazard rather than just preventing exposure • Hazard is acknowledged as another important property of matter • Green chemistry must be the best chemistry -practical and economically-driven
12 Principles(Green Chemistry: Theory and Practice, Anastas and Warner, 1998) • #1: Prevent, rather than treat, waste • #2: Maximize use of materials - atom economy • #3: Avoid hazardous materials (reagents, starting materials and solvents) and products or by-products • #4: Design safer products -design in efficacy, design out hazards • #5: Minimize the use of solvents and auxiliary substances • #6: Recognize energy costs and minimize them
12 Principles, cont. • #7: Use renewable feedstocks • #8: Omit needless steps -protection/deprotection • #9: Use catalysis! • #10: Design products for end of life -products should not persist in the environment, should degrade into innocuous substances • #11: Employ in-line, real-time monitoring/control to avoid generation of hazardous substances in transformations • #12: Whenever possible choose substances that minimize physical danger (explosions, fires, etc.)
Student Projects • Tie Dyeing – An Trinh and Michael Cochran-Boucher • Greening the Synthesis and Analysis of Aspirin – Alicia DeLuca and Lisa Holt • Iodine Clock Reaction – Ryan Piotrowski and Robin Renzi • Vanillin Reduction: A Low Solvent Synthesis – Marcus Nappo and Kevin Heiser • Forensic Fingerprinting – Jane Russell and Stacy Tanguay • Blood Identification – Katherine Shaw and Duyen Ha • Natural versus Synthetic Dyes – Ben Jarmak and Jessie Wood
Future Green Projects • Organic Chemistry students next fall will look into more videotaping of green experiments to post on a class wiki site for the benefit of the educational community and public at large • Green Chemistry Inquiry Course – under development – hope to offer Spring 2011
Useful Links/Resources • Doxsee and Hutchison -Green Organic Chemistry: Strategies, Tools and Laboratory Experiments, Brooks Cole, 2003. (lab manual used for some course materials - copy here) • GEMs database (Greener Educational Materials) for Chemists • http://greenchem.uoregon.edu/gems.html • EPA - Green Chemistry Presidential Awards • http://www.epa.gov/greenchemistry/index.html • Dr K’s wiki - http://sarahkenick.wikispaces.com/ • Up to date information on ongoing projects, both here and collaborations with other institutions • Today’s projects • Links to other resources • All our project items (will link to the project wiki site)
Questions later? • Feel free to contact Dr. Kenick at sarah.kenick@unh.edu • Hope you got a little green!