Copper refining

VC5.1.2.3

Copper refining

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This product contains dangerous substances!

Description

Raw copper contains traces of other elements. These can be removed via electrolysis. To do so, raw copper is electrolysed in a copper sulfate solution. The raw copper is used as the anode. Here, the ignoble elements and copper will dissolve. At the cathode (also made from copper), pure copper is deposited.

In this experiment, the copper refinement is conducted using a brass electrode (copper, "contaminated" by sinc).

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	664401 4	Electrochemistry accessories set
1	664130 4	Beaker, Boro 3.3, 250 ml, squat
1	664131 4	Beaker Boro 3.3, 400 ml, squat
1	665754 4	Measuring cylinder 100 ml, with plastic base
1	6677991	Analytical balance, 220 g : 0.0001 g
1	666714 8	Cartridge burner, DIN type Warning H220
1	602783 8	Glass rod, 200 mm, diam. 6 mm
1	6659531 4	Dropping pipette 150 mm x 7 mm Ø
1	6659541 8	Rubber bulb
1	666584 4	Filtration stand for two funnels
1	665005 4	Funnel, Boro 3.3, 100 mm diam.
1	609082 4	Folded filter 125mmØ Typ: 595
1	6729600 4	Copper(II) sulfate-5-hydrate, 100 g Danger H302 H318 H400 H410
1	6747850 4	Sulfuric acid, 95-98 %, 250 ml Danger H314 H290
1	6738400 4	Sodium hydroxide solution, diluted, aprox. 2 M, 500 ml Danger H314 H290
1	6753400 4	Water, pure, 1 l

Experiment Instructions

PDF (Experiment description)

C5.1.2.3 Copper refining

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Copper refining

Description

Components of equipment sets

Experiment Instructions

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