Most of us have used aspirin at some time in our lives, but few will know that a related compound derived from willow bark has been used to relieve pain and treat fevers for over 2,000 years. Aimed at post-16 students in chemistry, this book contains activities for both academic and vocational courses. Ranging from preparative/analytical to problem-solving exercises, the activities can be used singly or as a coherent package. A guide for teachers and technicians is also included.
How to use this book;
Background information: The aspirin story;
Experimental and investigation section: The preparation of 2-hydroxybenzoic acid;
The preparation of aspirin;
Purifying by recrystallisation;
The melting point of aspirin;
Using thin-layer chromatography to investigate aspirin;
The solubility of aspirin;
Thin-layer chromatography of pain killers;
Teacher's and technician's guide to the activities