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Melting and freezing stearic acid

Description

In this class practical students take the temperature of stearic acid at regular intervals as they heat and cool it.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
melting-and-freezing-stea...



Apparatus Chemicals

Eye protection

Per pair or group of students:

Beaker (250 cm3)

Boiling tube (Note 1)

Thermometer (0-100˚C)

Stop clock

Clamp, stand and boss

Bunsen burner

Tripod

Gauze

Heat resistant mat

Stearic acid (octadecanoic acid)

Refer to Health & Safety and Technical notes section below for additional information.

 






In this class practical students take the temperature of stearic acid at regular intervals as they heat and cool it.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology.