Continue this process until you have collected 4 ml of distillate in individual centrifuge tubes, making sure to note the temperature range at which you collected each distillate fraction. While waiting for the distillation, prepare 8 test tubes numbered 1-8 each containing 5 ml of chromic acid reagent. When the distillation is complete, add 5 l of each distillate fraction to the corresponding test tube containing chromate solution. Boil the test tubes in a water bath under the hood for 10 min. Handle carefully Compare the color of the tubes.
Orange tubes contain no alcohol, clear or blue tubes contain alcohol.
Record your observations.