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Chemical corrosion protection

Chemical corrosion protection

VC1.5.3.4

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Description

Iron can be protected from corrosion using chemical processes. Then, the metal surface is treated chemically in a way, that a layer is formed that saves the metal. Especially passivation and phosphatation can be mentioned here.

In this experiment iron nails are corroded. The corrosion of iron is detected using Prussion blue. Treated and untreated nails are compared.

Components of equipment sets

1	664401 4	Electrochemistry accessories set
1	667035	Crucible tongs 200 mm
1	664043 4	Test tubes, Fiolax, 16 x 160 mm, set of 10
1	667050 4	Test tube rack, plastic, for 9 tubes, 18 mm Ø
1	6045661 4	Spatula, double ended, 185 mm
2	602022 4	Beaker Boro 3.3, 100 ml, squat
1	602740 4	Petri dish, 120 mm
1	6659531 4	Dropping pipette 150 mm x 7 mm Ø
1	6659541 8	Dropper bulb
1	666711 4	Butane gas burner
1	6726100	Potassium ferrocyanide (III), 50 g EUH032
1	6735700 4	Sodium chloride, 250 g
1	6737410 4	Trisodium phosphate dodecahydrate, 250 g Warning H319 H315
1	6753400 4	Water, pure, 1 l
1	6746610 4	Nitric acid, 65%, 500 ml Danger H272 H314 H290

Experiment Instructions

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C1.5.3.4 Chemical corrosion protection

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Chemical corrosion protection

Description

Components of equipment sets

Experiment Instructions

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