Column Chromatography Flashcards Preview

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Flashcards in Column Chromatography Deck (12):
1

RF- Retention Factor

Distance SPOT traveled
———————————
Distance SOLVENT traveled

2

You can use RF value to

Compare to the real substance and then compare RF value of the product to the real value

3

Stationary phase

Alumina

4

Mobile phase

Solvent

5

Prepare the COLUMN

Top: Thin Layer of Sand
Alumina
Sample
Solvent
Sand
Bottom:Cotton

6

Fraction 1:

Yellow(mobile phase) ferrocene

7

Fraction 3

Orange(stationary phase) acetylferrocene

8

Acetylferrocene is

More polar meaning it’ll be more stationary(high affinity to polar)

9

Ferrocene

High affinity to LOWER polarity (mobile phase)

10

Performed recrystallization and

Vacuum filtration

11

Melting point

114-117celsius

12

Melting point Acetylferrocene

81-85 celsius