Why is the base metal aluminium so non-corrosive?

Article no. P7401900 | Type: Experiments

10 Minutes
10 Minutes
grades 7-10 , grades 10-13
Pupils
medium
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Also part of:

Student set Electrochemistry, digital, TESS advanced Chemistry

Article no. 25307-88D | Type: Set

Student Set Electrochemistry, TESS advanced Chemistry

Article no. 25307-88 | Type: Set

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Principle

Some metals are found to be quite stable in air, although they should be extremely unstable according to their position in the electrochemical series. The most well known metal of this type is aluminium. It has a standard potential E0 of -1.66 V. It is therefore far more a base metal than zinc (E0 = 0.7628 V) or even iron (E0 = 0.409 V).
In this experiment, the student investigates why the base metal aluminium is so resistant against the influence of weathering.

 

Learning objectives 

  • Natural corrosion protection of aluminum

 

Benefits

  • Easy teaching and efficient learning by using interactive experimentation PHYWE-Software
  • Experiment is part of a complete solution set with experiments for the topic Electrochemistry matched with international curriculum: all topics are covered

 

Name
File name
File size
File type
(en) Experiment guide
p7401900e .pdf
File size 0.81 Mb
pdf
(de) Versuchsbeschreibung
p7401900_de .pdf
File size 3.13 Mb
pdf
(ru) Versuchsbeschreibung
p7401900_ru .pdf
File size 3.23 Mb
pdf
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