Demonstration of pyridine derived from nicotinic acid

Chemicals needed

calcium carbonate

nictonic acid

Instead of nictonic acid one can also use benzoic acid, but then benzene (caution!) is produced.

Dangerous substance information

pyridine GSLEICHT.gif (932 Byte) F GSGESUND.gif (476 Byte) Xn    R 11-20/21/22     S (2)-26-28

Equipment needed

2 test tubes
rubber plug with discharge tube
stand with double sleeve and clamp
beaker or similiar
mortar with pestle
powder funnel
glass rod, or similiar
burner (preferably alcohol)

Test procedure



From nictonic acid, as is the case with most aromatic carboxylic acids, the carboxyl group can be split off by strongly heating with lime.


DSCN0486.JPG (218863 Byte)

Demonstration of pyridine


Own experimental procedure