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 …

…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