Electrolytic polarisation

VC4.4.5.1_p

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Description

In experiment C4.4.5.1 the voltage during an electrolysis is raised starting from zero. Note that there is no significant flow of current until a certain voltage level is reached. That voltage is called the decomposition voltage or the deposition voltage. It is the combination of the polarisation voltage and the overvoltage. Both parameters depend on the electrode material. Different electrode materials are investigated in experiment C4.4.5.1.

Components of equipment sets

1	6644071 8	Electrochemistry demonstration unit, CPS
1	666425 4	Panel frame C50, two-level, for CPS
1	666472 4	Table for electrochemistry, CPS
1	665754 4	Measuring cylinder 100 ml, with plastic base
1	664401 4	Electrochemistry accessories set
1	6738410 4	Sodium hydroxide solution, 0.1 mol/l, 500ml Warning H290
1	6729660 4	Copper(II) sulfate solution, 1 mol/l (15 %), 500 ml Danger H318 H400 H410

Experiment Instructions

PDF (Experiment description)

C4.4.5.1p Electrolytic polarisation

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Electrolytic polarisation

Description

Components of equipment sets

Experiment Instructions

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