CHEM 2312 Lecture Notes - Fractional Distillation, Boiling Chip, Sand Bath
17 Feb 2014
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Document Summary
The objective of this experiment is to separate cyclohexane and toluene from a liquid mixture using simple and fractional distillation. Eight milliliters of a 50/50 mixture of cyclohexane and toluene was added to a 10ml round bottom flask with a boiling chip. The mixture was distilled using the hickman distillation head and simple distillation. The flask was heated in the sand bath until distillate started to form in the hickman. The distillate was removed and the volume and temperature recorded. This was repeated until there was about 1ml of the mixture left in the flask. The first volumes recorded for the first two distillate readings were larger than any of the others. This is probably because the mixture was heated very quickly and distillate formed faster than expected; therefore, distillate was left to collect for too long before it was removed the first couple of times.
