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Thermal decomposition of metal carbonates

Description

This experiment involves a comparison between the thermal stabilities of carbonates of reactive metals, such as sodium and potassium, and the carbonates of less reactive metals, such as lead and copper.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
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Apparatus Chemicals

Eye protection

Each group will require:

Test-tubes, 2 (per carbonate)

Delivery tube (right-angled)

Spatula

Bunsen burner

Clamp and stand

Limewater (calcium hydroxide solution), 10 cm3 per carbonate

About 2 g each of following solids:

Copper carbonate (HARMFUL)

Lead carbonate (TOXIC, DANGEROUS FOR THE ENVIRONMENT)

Potassium carbonate (IRRITANT)

Sodium carbonate, anhydrous (IRRITANT)

Zinc carbonate

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

 




 

 

 



Page last updated October 2015

This experiment involves a comparison between the thermal stabilities of carbonates of reactive metals, such as sodium and potassium, and the carbonates of less reactive metals, such as lead and copper.

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 .