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