Ion Transport in Liquids
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 colored anion permanganate (MnO4-) and the colored cation copper tetraamine (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:
| 1 | 664 091 | Double U-tube, 160 mm, with 2 G4 filters |
| 1 | 664 369 | Platinum leaf rod electrodes, set of 2 |
| 1 | 664 4071 | Electrochemistry demonstration unit, CPS |
| 1 | 501 44 | Connecting leads, 19 A, 25 cm, red/blue, pair |
| 1 | 666 425 | Panel frame C50, two-level, for CPS |
| 1 | 666 472 | Table for electrochemistry, CPS |
| 1 | 590 02ET2 | Clip plugs, small, set of 2 |
| 1 | 664 243 | Erlenmeyer flask, 250 ml, narrow neck, SB 29 |
| 1 | 665 754 | Measuring cylinder, 100 ml, with plastic base |
| 1 | 602 022 | Beaker, Boro 3.3, 100 ml, squat |
| 1 | 664 130 | Beaker, Boro 3.3, 250 ml, squat |
| 1 | 664 133 | Beaker, Boro3.3, 1000 ml, squat |
| 1 | 665 217 | Glass stirring rod, 500 mm x 8 mm diam., set of 10 |
| 1 | 604 5682 | Powder spatula, steel, 185 mm |
| 1 | ADACB501 | Compact scale 500 g; 0.1g |
| 1 | 670 4900 | Ammonium sulfate, 250 g |
| 1 | 672 7000 | Potassium permanganate, 100 g |
| 1 | 672 9600 | Copper(II) sulfate-5-hydrate, 100 g |
| 1 | 670 3650 | Ammonia solution, diluted, 2 mol/l, 500 ml |
| 1 | 675 3500 | Hydrogen peroxide, 30 %, 250 ml |
| 1 | 675 3400 | Water, pure, 1 l |
| 1 | 665 004 | Funnel, Boro 3.3, 80 mm diam. |
| 1 | 666 584 | Filtration stand for two funnels |
| 1 | 661 066 | Folded filter |
EXPERIMENT INSTRUCTIONS PLEASE CLICK HERE
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