Extracting Chlorophyll with Boiling Water
Location: Outside U.S.
Country: Palestinian Territories
Date: Winter 2013-14
Why we sink a leaf in a boiling water to extract chlorophyll?
Chlorophyll is usually extracted from leaves with ethanol, acetone or methanol. These liquids are flammable. In laboratory exercises a beaker of solvent is often placed in a beaker of water. This is done to keep the solvent from burning. The leaves are placed in the ethanol.
I'm not sure what you and your teacher were doing in lab. I hope this information helps you understand your question.
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Update: November 2011