Ion transport in liquids

C4.4.1.1
Ion transport in liquids
Ion transport in liquids

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Description

Conductivity relies on the migration of ions in the electric field. Anions (negative) migrate to the positive pole, cations (positive) migrate to the negative pole. In experiment C4.4.1.1, this migration is observed directly. The coloured anion permanganate (MnO4-) and the coloured cation copper tetraammine (Cu(NH3)42+) are used for this purpose. In this way, the direction of migration and the magnitude of the speed can be determined.

Components of equipment sets

1 664 091 Double U-tube, 160 mm, with 2 G4 filters LD
2 664 3691 Rod electrode platinum sheet LD
1 664 4071  8  Electrochemistry demonstration unit, CPS LD
1 500 411  4  Connecting lead, 19 A, 25 cm, red LD
1 500 412  4  Connecting lead, 19 A, 25 cm, blue LD
1 666 425  4  Panel frame C50, two-level, for CPS LD
1 666 472  4  Table for electrochemistry, CPS LD
2 591 21  4  Clip plug, large LD
1 667 255  4  Rubber stopper, solid, 16...21 mm diam. LD
1 664 243  8  Erlenmeyer flask 250 ml, narrow neck, SB 29 LD
1 665 754  4  Measuring cylinder 100 ml, with plastic base LD
1 602 022  4  Beaker Boro 3.3, 100 ml, squat LD
1 664 130  4  Beaker, Boro 3.3, 250 ml, squat LD
1 664 133  4  Beaker, Boro3.3, 1000 ml, squat LD
1 665 217  4  Glass stirring rod, 500 mm x 8 mm diam., set of 10 LD
1 604 5682  4  Powder spatula, steel, 185 mm LD
1 ADAHCB602H Precision Balance, 600 g /0,01g, with USB interface LD
1 670 4900  4  Ammonium sulfate, 250 g LD
1 672 7000  4  Potassium permanganate, 100 g LD
GHS03GHS07GHS09 Danger H272 H302 H410
1 672 9600  4  Copper(II) sulfate-5-hydrate, 100 g LD
GHS09GHS05GHS07 Danger H302 H318 H400 H410
1 670 3650  4  Ammonia solution, diluted, 2 mol/l, 500 ml LD
GHS05 Danger H315 H318
1 675 3500  4  Hydrogen peroxide, 30 %, 250 ml LD
GHS05GHS07 Danger H302 H318
1 675 3400  4  Water, pure, 1 l LD
1 665 004  4  Funnel, Boro 3.3, 80 mm diam. LD
1 666 584  4  Filtration stand for two funnels LD
1 661 066  4  Folded filter LD

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C4.4.1.1 Ion transport in liquids
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