The carbon dioxide fire extinguisher

LC1.3.2.3
The carbon dioxide fire extinguisher
The carbon dioxide fire extinguisher

Description

In this experiment the students will make a carbon dioxide foam fire extinguisher. To do this, hydrochloric acid is added to a solution of sodium carbonate and washing-up liquid and the resulting extinguishing foam is put on a wax fire (burning tea light). The students recognise how a carbon dioxide fire extinguisher works and also learn about the properties of a fire.

Components of equipment sets

1 30109  4 
Bosshead S LD
1 6045682  4 
Powder spatula, steel, 185 mm LD
1 30121  8 
Stand base MF LD
2 301271  4 
Stand rod 40 cm, 10 mm Ø LD
1 30123  4 
Stand feet, pair LD
1 666555  4 
Universal clamp 0...80 mm LD
1 6659541  8 
Rubber bulb LD
1 6659531  4 
Dropping pipette 150 mm x 7 mm Ø LD
1 665754  4 
Measuring cylinder 100 ml, with plastic base LD
1 6641941  4 
Pneumatic Tank, Plastic LD
1 664243  8 
Erlenmeyer flask 250 ml, narrow neck, SB 29 LD
1 667180  4 
Rubber tubing Ø 7 mm, t = 1,5 mm, l = 1m LD
1 667262  4 
Rubber stopper two 7 mm holes, 25...31 mm Ø LD
1 665235  4 
Angled tube 90°, 300/50 mm, 8 mm Ø LD
1 665232  8 
Angled tube 90°, 50/50 mm, 8 mm Ø LD
1 610010  8 
Laboratory safety goggles LD
1 6735600  4 
Sodium carbonate, anhydrous, 100 g LD
GHS07 Warning H319
1 6746920  4 
Hydrochloric acid, approx. 2 mol/l, 500ml LD
GHS05 Warning H290
1 6721190  4 
Glycerine, 99%, 50 ml LD
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