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F336- aspirin individual Investigation
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- Essay length: 10517 words
- Submitted: 02/02/2011
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Does Temperature Affect The Yield And Purity Of Aspirin?
Contents
Objectives
1) Research using various sources on aspirin with reference to; history ,use in medicine and methods of synthesis
2) produce a sample of aspirin using a method found during research
3) Verify the presence of aspirin and use various method to measure the purity of the manufactured aspirin
4) Carry out investigation to see if temperature effects the yield and purity of aspirin
Research
History of aspirin
400 BC, Greece - Hippocrates recommended a brew made from willow leaves to ease the pain of child birth.
1763, England - A reverend called Edward Stone was walking through a meadow in Oxfordshire while suffering from an acute fever. Stone removed a small piece of bark from a willow tree and nibbled on it. He was struck by its extremely bitter taste, as an educated man he knew that he bark from Peruvian cinchona tree (which has a similar taste) is used in the treatment of malarial fevers. He surmised that the willow might also have therapeutic properties. He gathered and dried a pound of willow bark and created a
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