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Sodium ethanoate 'stalagmite'

Description

In this demonstration experiment, a supersaturated solution of sodium ethanoate crystallises rapidly forming a 'stalagmite'.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
sodium-ethanoate-stalagmi...



Apparatus Chemicals

The teacher requires

Eye protection

Beaker (250 cm3)

Measuring cylinder (25 cm3)

Watch glass (large one, about 10 cm diameter)

Stirring rod

Bunsen burner, tripod and gauze

Access to a top-pan balance (1 d.p. is sufficient)

Sodium ethanoate-3-water (sodium acetate-3-water), 125 g

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

 








In this demonstration experiment, a supersaturated solution of sodium ethanoate crystallises rapidly forming a 'stalagmite'.

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.