Welcome to the Science Symposium

UNH Manchester

Tuesday, December 15th, 2009

3-5pm

“Tis the Season to be GREEN

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 ProjectsTie 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/ResourcesDoxsee 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 institutionsToday’s projectsLinks to other resourcesAll 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!