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C1.5.3.1 Conditions for Iron Corrosion
C1.5.3.1 Conditions for Iron Corrosion
Leybold LD Didactic

C1.5.3.1 Conditions for Iron Corrosion

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Conditions for Iron Corrosion

Experiment C1.5.3.1 examines the conditions under which ferrous metals corrode. Wads of iron wool are subjected to different conditions. In one test tube, boiled water is poured over the iron wool, in the second test tube the iron wool is left dry, and the third test tube is rinsed with tap water so that droplets remain in the tube. This test tube is connected to an immersion tube manometer filled with colored water. The changes in the iron wool and the changes in the immersion tube manometer are observed. It can be seen that under the simultaneous action of water and oxygen on iron, corrosion forms and a measurable negative pressure builds up in the apparatus.

Components of experiments:

1 665 936 Immersion tube manometer, after Schiele
1 667 054 Test tube rack, for 12 tubes, 32 mm diam.
1 664 045 Test tubes, Fiolax, 30 x 200 mm, set of 10
1 665 232 Angled tube 90°, 50/50 mm, 8 mm Ø
1 667 261 Rubber stopper, one 7-mm hole, 25...31 mm diam.
1 667 180 Rubber tubing, 1 m x 7 mm diam., DIN 12865
2 300 02 Stand base, V-shaped, small
1 301 28ET2 Stand rod, 45 cm, 10 mm diam., set of 2
2 301 09 Bosshead S
2 666 555 Universal clamp, 0...80 mm
1 664 183 Petri dishes
1 667 0344 Tweezer, blunt, 145 mm
1 664 130 Beaker, Boro 3.3, 250 ml, squat
1 666 767 Hotplate, 1500 W, 180 mm diam.
1 666 962 Double-ended spatula, stainless steel, 150 mm
1 671 8410 Iron wool, 200 g
1 670 8200 Petroleum ether, 90...110 °C, 250 ml
1 309 42 Colouring, red, 10 g
1 672 1200 Glycerin, 99 %, 100 ml


Experiment instructions please click here