Isolation and detection of lactose

LC5.2.2.1
Isolation and detection of lactose
Isolation and detection of lactose

Description

In the following experiment, the students isolate lactose from milk. They then demonstrate the reducing property of lactose with the Fehling test.

Components of equipment sets

1 6719900  4 
Fehling's solution I, 100 ml LD
GHS09GHS05 Danger H318 H400 H410
1 6720000  4 
Fehling's solution II, 100 ml LD
GHS05 Danger H314
1 665212  4 
Glass stirring rod 200 x 8 mm Ø LD
1 6659531  4 
Dropping pipette 150 mm x 7 mm Ø LD
1 6659541  8 
Rubber bulb LD
1 667027  4 
Tweezers, blunt, 130 mm LD
1 667057  4 
Test tube rack metal, 20 mm Ø LD
1 667031  4 
Test tube holder 20 mm Ø LD
1 661035  8 
Round filter, Type 595, 125 mm Ø, Set of 100 LD
1 661091  4 
Boiling stones 100 g LD
2 30109  4 
Bosshead S 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 MA90204  8 
Universal indicator paper pH 1...14, roll LD
1 6640421  4 
Test tube Fiolax 16 mm x 160 mm LD
2 664131  4 
Beaker Boro 3.3, 400 ml, squat LD
1 664441  4 
Evaporating dish porcelain, 61 mm Ø LD
1 665009  4 
Funnel PP 75 mm Ø LD
1 666573  4 
Stand ring with stem 100 mm Ø LD
1 666685  4 
Wire gauze 160 mm x 160 mm LD
1 610010  8 
Laboratory safety goggles LD
1 667609  4 
Safety gloves, nitrile rubber, size 8 LD
1 6667031  8 
Teclu burner, propane LD
1 6719550  4 
Acetic acid, dil., approx. 2 mol/l, 500 ml LD
GHS05 Warning H315 H319 H290
1 6738400  4 
Sodium hydroxide solution, diluted, aprox. 2 M, 500 ml LD
GHS05 Danger H314 H290
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