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Figure 1. Diagram showing an arbitrary section of the distillation column. Mole balances are made on such a section to generate the operating line.
Figure 2. This is the distillation column. I'm sure no one in this group would start up the column with that closed can of flammable 1-propanol sitting right next to the heating mantle for the pot.
Figure 3. These are the ports on the side of the column through which samples are extracted with a syringe.
Figure 4. This is one of the thermocouple wells in the side of the column. I hope that isn't someone's beverage cup on the counter in the background! Eating in a chemical lab is a definite safety violation.
Figure 5. This is the refractometer that is used to measure composition.
Figure 6. This is a close-up of the prism (closed) upon which the sample is placed.
Figure 7. Here's the same part of the instrument, this time open and ready to have a few drops of liquid placed on the prism surface. |
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last update: 03/18/99
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