February 3, 2007
Lab 2: Preparation and Reactions of Alkenes
To prepare alkenes from the dehydration reaction of α-Terpineol and to test the presence
of alkenes by Bromine test and Baeyer test.
Refer to Pages 34-35 of Chemistry 232 Laboratory Manual
Figure 1: Procedure and Observations:
5 g of
α-Terpineol was added to 5 mL of
85% phosphoric acid which was distilled
along with boiling chips.
During the distillation process, the mixture
in the round bottom flask was erupting
violently, and it popped through the
condenser and into the collecting graduated
Figure 2: Reagents of Dehydration of α-Terpineol
MW (g / mole)
Mp: -20 ºC, bp 219 ºC
May cause eye, skin,
and respiratory tract
irritation. May cause
central nervous system
This is the end of the preview. Sign up
access the rest of the document.