application+of+the+principles+of+green+chemistry


 * //Application of the principles of green chemistry// **


 * Videos**

When CFCs meet Ozone || media type="custom" key="24135948" A demonstration of supercritical carbon dioxide ||
 * media type="custom" key="24123908"


 * Interesting facts:**
 * DDT (dichlorodiphenyltrichloroethane) is an organochlorine insecticide which is a colorless, crystalline solid, tasteless and almost odorless chemical compound. First synthesized in 1874, DDT's insecticidal properties were not discovered until 1939, and it was used with great success in the second half of World War II to control malaria and typhus among civilians and troops. Because DDT is relatively insoluble in water, but highly soluble in fats, therefore, it made its way up the food chain and concentrated in animal fats in higher order species. This chemical was linked to the massive drop in the population of eagle numbers in the USA. DDT has been banned in Australia since 1987.
 * The combination of temperature and pressure above which separate liquid and gas phases no longer exist is known as the critical point.
 * Since the 1980s, supercritical carbon dioxide has been used to extract caffeine from tea and coffee to make 'decaf'.


 * Resources:**
 * Green Chemistry Pocket Guides from the American Chemical Society.
 * Greener Educational Materials for Chemistry from the University of Oregon.
 * Beyond Benign: Green Chemistry Education.