The Tour of Collective Wisdom presents:
Rookie Mistakes

Tour the Mistakes

Equipment Reagents Setup Quenching Rxns Workup Chromatography
Distillation Spectroscopy Cleaning Record-Keeping Accidents Miscellaneous

Top Ten Mistakes

MistakeNumber of rookies who have done this
Tried to drain sep. funnel with stopper still in 355
Bumped solution on rotovap. 333
Forgot to pre-weigh your round bottom flask. 294
Set up reaction under Ar, added in reagents and forgot to add stir bar 285
Poured a reaction mixture into a separating funnel without closing the tap. Recovered reaction mixture from the bottom of the fume hood. 278
Solvent run all the way to the top of TLC plate 276
Didn't label a flask. One week later, have NO idea what is inside. 273
Handled volatile, smelly and/or toxic solvents or reagents (benzene, carbon disulfide, acrylates, etc.) outside of the fume hood. 257
Sniffed noxious compound/gas/solvent, not waft! 233
Use of a little stirr bar with a big flask 219

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