Separation Techniques

Decant/Filter and Vacuum Filtration
- a) solid non polar
- b) liquid polar
- - interchangeable
Distillation
- 2 liquids
- same polarity
- BP >20 degrees celsius
Sep Funnel
- 2 liquids
- 1. polar
- 2. nonpolar
Column Chromatography
- 2 liquids
- slight difference in polarity
Washing Out
- 2 solids
- 1) polar
- 2) nonpolar
Recrystallization
- 2 solids
- slight differences in polarity
Extraction

To obtain a pure liquid, sample of the product after reflux.
Use of a drying agent

Removal of the final traces of water after synthesis.
Remove solvent

used after decant of drying agent to remove diethyl either (rinse).
TLC
- verify purity of sample
- shows relative polarities
IR

show prity of the product.
Melting point

purity determination.

Author

Anonymous

71603

Card Set

Separation Techniques

Description

sep techniques cards

Updated

2011-03-08T18:31:38Z

Show Answers