Synthesis of ammonia by the Haber-Bosch process

VC5.1.1.2
Synthesis of ammonia by the Haber-Bosch process
Synthesis of ammonia by the Haber-Bosch process

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Description

The Haber-Bosch process is the most important process for the production of ammonia. It was developed by the chemist Fritz Haber and the engineer Carl Bosch and was already being used in industrial scale operations in 1913.

Ammonia is synthesised here from molecular nitrogen and hydrogen. A catalyst is required in order to speed up the rate of reaction.

Experiment C5.1.1.2 uses the catalyst developed by Mittasch (iron powder, aluminium oxide, calcium oxide and potassium nitrate) in order to produce small quantities of ammonia even at normal pressure. The ammonia can be assayed using the base reaction on indicator paper.

Components of equipment sets

1 6640772 Reaction tube, quartz, 160 x 20 mm Ø LD
1 666428  8  Panel frame C100, two-level, for CPS LD
2 6664660  8  Adhesive magnetic board 300 mm LD
2 6664659  8  Adhesive magnetic board 500 mm LD
2 667286 Silicone stopper, one 7-mm hole, 16...21 mm Ø LD
1 6664795 HydroStik PRO, CPS LD
2 6664665  8  Holder, magnetic, size 5, 30...32 mm LD
3 6664661  8  Holder, magnetic, size 1, 9...11 mm LD
1 6669882  4  Combustion boat, glazed LD
1 667194  4  Silicone tubing 7 mm Ø, 1 m LD
1 667197  4  Silicone tubing, 4 mm diam., 1 m LD
1 667198  4  Silicone tubing, 2 mm diam., 1 m LD
1 604510  4  Tubing connector, 4...15 mm LD
2 665914  4  Gas syringe, 100 ml with 3-way stopcock LD
1 666714  4  Cartridge burner, DIN type LD
GHS02 Warning H220
1 666731  4  Gas igniter, mechanical LD
1 602711  4  Three-way valve, ST, capillary tap, T-shape LD
1 667312  8  Glass connector, 2 x GL 18 LD
1 30076 Laboratory stand II LD
1 6664798  4  HydroFill PRO LD
1 660980  8  Fine regulating valve for minican gas canisters LD
1 661000  4  Minican pressurised gas canister, nitrogen LD
GHS04 Warning H280
1 667034  4  Tweezers, blunt, 200 mm LD
1 6045662  8  Doppelspatel Stahl, 210 mm LD
1 6677933  4  Pocket Balance JE500 LD
1 MA90201  8  Universal indicator paper, roll LD
1 602002 Test tube DURAN, 16 x 160 mm, set of 100 LD
1 667032  4  Test tube holder, wooden, 40 mm diam. LD
1 608351  4  Mortar, 75 ml LD
1 608361  4  Pestle, 115 mm long LD
1 664154 Watch glass dish 80 mm Ø LD
1 602032  4  Beaker, DURAN, 150 ml, tall LD
1 661243  4  Wash bottle PE 500 ml LD
1 661251  4  Flip-flap glass, 20 ml LD
1 6718300  4  Iron powder, reduced, 50 g LD
1 6702900  4  Aluminium oxide, 250 g LD
1 6713200  4  Calcium oxide, powder, 100 g LD
GHS05 Danger H318
1 6726800  4  Potassium nitrate, 100 g LD
GHS03 Warning H272

Experiment Instructions

YouTube-Video YouTube-Video The new chemistry presentation system CPSflex
PDF (Experiment description) PDF (Experiment description) C5.1.1.2 Synthesis of ammonia by the Haber-Bosch process
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