Chemical corrosion protection

VC1.5.3.4
Chemical corrosion protection
Chemical corrosion protection

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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 LD
1 667035 Crucible tongs 200 mm LD
1 664043  4  Test tubes, Fiolax, 16 x 160 mm, set of 10 LD
1 667050  4  Test tube rack, plastic, for 9 tubes, 18 mm Ø LD
1 6045661  4  Spatula, double ended, 185 mm LD
2 602022  4  Beaker Boro 3.3, 100 ml, squat LD
1 602740  4  Petri dish, 120 mm LD
1 6659531  4  Dropping pipette 150 mm x 7 mm Ø LD
1 6659541  8  Rubber bulb LD
1 666711  4  Butane gas burner LD
1 6726100  4  Potassium ferrocyanide (III), 50 g LD
EUH032
1 6735700  4  Sodium chloride, 250 g LD
1 6737410  4  Trisodium phosphate dodecahydrate, 250 g LD
GHS07 Warning H319 H315
1 6753400  4  Water, pure, 1 l LD
1 6746610  4  Nitric acid, 65%, 500 ml LD
GHS03GHS05 Danger H272 H314 H290

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C1.5.3.4 Chemical corrosion protection
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