INTRODUCTORY ORGANIC CHEMISTRY
LABORATORY MULTIMEDIA GUIDE

LAB 8 - DEHYDRATION OF 2-METHYLCYCLOHEXANOL

LAB 8-DEHYDRATION OVERVIEW:

(Full text)

1. Take phosphoric acid and 2-methylcyclohexanol in a 5 mL RB flask. Heat and distill the mixture to the conditions specified in the procedure.

2. Cool the flask and add o-xylene.

3. Distill until the conditions specified in the procedure.

4. Dry the product mixture first by extracting with brine and then adding anhydrous potassium carbonate.

5. Distill the dried product using a clean set of apparatus until the conditions specified in the procedure.

6. Perform the following two tests for unsaturation on 2-methylcyclohexanol, cyclohexane, cyclohexene and o-xylene.

1. Bromine test
2. Baeyer test

PLEASE WATCH THE SAFETY VIDEO AND READ
THE PRECAUTIONS + LAB REGULATIONS BEFORE YOU START.

glassware and equipment needed	correct positioning of the thermometer
set up for first distillation	wooden block removed for cooling
two layers in the centrifuge tube	holding the bulb squeezed before inserting
right amount of steelwool	set up for fractional distillation of the product
bromine test: positive result on the left, negative result on the right	baeyer test: positive result on the left, negative result on the right

	Dehydration Video Demonstration part 1
	Dehydration Video Demonstration part 2
	Dehydration Video Demonstration part 3
	Dehydration Video Demonstration part 4
	Dehydration Video Demonstration part 5
	Dehydration Video Demonstration part 6
	Dehydration Video Demonstration part 7
	Bromine Test Video Demonstration
	Baeyer Test Video Demonstration