Electrolytic polarisation

Electrolytic polarisation
Electrolytic polarisation

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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 LD
1 666425  4  Panel frame C50, two-level, for CPS LD
1 666472  4  Table for electrochemistry, CPS LD
1 665754  4  Measuring cylinder 100 ml, with plastic base LD
1 664401  4  Electrochemistry accessories set LD
1 6738410  4  Sodium hydroxide solution, 0.1 mol/l, 500ml LD
GHS05 Warning H290
1 6729660  4  Copper(II) sulfate solution, 1 mol/l (15 %), 500 ml LD
GHS09GHS05 Danger H318 H400 H410

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C4.4.5.1p Electrolytic polarisation
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