Manual for Recrystallization
Instruction Manual
The purification process:
Recrystallization & Filtration
Jason Williams
09-13-00
NATS 4310
Table of Contents
Preface
Chapter 1 Equipment involved and preparation
Glassware and accessories
Proper sterilization of equipment
Safety precautions
Chapter 2 Setup procedure before purification
Equipment setup
Choosing of solvent
Chapter 3 Gathering of an unknown compound and the first step: filtration
Collection
Filtration
Repeat Filtration and Cleaning
Collection and measuring of crude sample
Chapter 4 Recrystallization process
Solvent addition
Induction of Crystals
Collection
Chapter 5 Evaluation methods …
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…A: Keep scratching the glass using the rod. Or try and place the flask in the ice bath earlier, that may induce crystal formation. If nothing happens the solution have been solvated too much to allow the crystals to reform.
IF ALL ELSE FAILS, ASK THE INSTRUCTOR FOR HELP!
INDEX
Crude sample
Collection
Equipment
Filtration
Glassware
Induction
Infrared Spectroscopy
Melting points
Nuclear Magnetic Resonance
Organic Chemistry
Recrystallization
Safety goggles
Solvents
Sterilization
Thin layer chromatography
Vacuum
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