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Last time our spots didn't move at all, this means the mobile phase was way too nonpolar.
This time we'll try 100% ethyl acetate
Spot a new plate and run it!
run TLC with EtOAc.mp4Results
Results
Spots from left to right:
acetaminophen, phenacetin, product
Much Better!
Much Better!
Measure the retention factors (Rf values) for each spot:
Rf = (distance spot traveled) / (solvent front traveled)
Based on TLC is there any starting material left over?
Are the relative Rf values of ACE & phenacetin as expected?
Why is ethyl acetate (EtOAc) a better solvent for separation of these compounds?
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