Sustainable Science: Green Chemistry in your Classroom

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Sustainable Science: Green Chemistry in your Classroom

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1. Sustainable Science: Green Chemistry in your Classroom

5. Risk = f(hazard,exposure) Do we consider our level of exposure and the hazard itself? Does the dose makes the poison?

6. Safety first… and last

9. Law of Conservation of Matter Matter cannot be created or destroyed. A candle burns and appears to be destroyed, but..turns into less observable gas (a byproduct).

11. Ibuprofin synthesis Prior to 1990s each step produced waste and had 40% atom economy Now atom economy is around 77% (ideal is 100%) with much less waste.

13. Strategies for reducing waste Reduce Reuse Recycle Rebuy Rethink

14. Use safer solvents for chemical processes Return safe substances to the environment Design for biodegradability Eliminate the use of toxic solvents to dissolve reacting materials

15. Clock Reaction

17. Using Renewable Resources A sticky solution: Making glue from milk!

19. Green Chemistry means... Preventing pollution before it happens rather than cleaning up the mess later.

21. Green Chemistry lessons at www.greeningschools.org Green Your Lesson Plan Select “Green Chemistry” under Chemistry category Filter for classroom lessons

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