Technical data

Electrogravimetric determination of copper

Article no: P3062201

Principle

Electrogravimetry is an important analytical method for the quantitative determination or separation of species in solution. The technique involves the quantitative electrolytic deposition of an element, usually a metal, on a suitable electrode in weighable form.

Benefits

High quality platinum electrode for precise results
Optimized test procedure by heating

Tasks

Perform an accurate electrogravimetric determination of the amount of copper in a given sample solution.

Learning objectives

Quantitative analysis
Gravimetry
Electrolysis
Overpotential
Electrode polarisation

Necessary accessories

Analytical balance 120g/0.1mg

Scope of delivery

PHYWE Power supply, universal, analog display DC: 18 V, 5 A / AC: 15 V, 5 A	13503-93	1
PHYWE Digital multimeter, 600V AC/DC, 10A AC/DC, 20 MΩ, 200 µF, 20 kHz, −20°C…760°C	07122-00	2
Pt electrodes, electrogravimetry	45210-00	1
Connecting cable, 32 A, red, various lengths	07361-01	1
Connecting cable, 32 A, blue, various lengths	07361-04	1
Connecting cable, 32 A, red, various lengths	07362-01	2
Connecting cable, 32 A, blue, various lengths	07362-04	1
Magnetic stirring bar 30 mm, cylindrical	46299-02	1
Supp.rod stainl.st.,50cm,M10-thr.	02022-20	1
Spring balance holder	03065-20	1
Support rod with hole, stainless steel, 10 cm	02036-01	1
Holder for two electrodes	45284-01	1
Right angle boss-head clamp	37697-00	2
Beakers, Boro, high form, various sizes	46027-00	1
Bulb pipettes, various sizes	36581-00	1
Graduated pipettes, various sizes	36600-00	1
Pipettor	36592-00	1
Pasteur pipettes, 250 pcs	36590-00	1
Rubber caps, 10 pcs	39275-03	1
Wash bottle, plastic, 500 ml	33931-00	1
Copper-II sulphate,cryst. 250 g	30126-25	1
Sulphuric acid, 95-97%, 500 ml	30219-50	1
Nitric acid , 65% 1000 ml	30213-70	1
Ethyl alcohol, absolute 500 ml	30008-50	1
Water, distilled 5 l	31246-81	1