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

1 671 9900  4 
Fehling's solution I, 100 ml LD
GHS09GHS05 Danger H318 H400 H410
1 672 0000  4 
Fehling's solution II, 100 ml LD
GHS05 Danger H314
1 665 212  4 
Glass stirring rod 200 x 8 mm Ø LD
1 665 9531  4 
Dropping pipette 150 mm x 7 mm Ø LD
1 665 9541  8 
Dropper bulb LD
1 667 027  4 
Tweezers, blunt, 130 mm LD
1 667 057  4 
Test tube rack metal, 20 mm Ø LD
1 667 031  4 
Test tube holder 20 mm Ø LD
1 661 035  8 
Round filter, type 615, 125 mm Ø, Set of 100 LD
1 661 091  4 
Boiling stones 100 g LD
2 301 09  4 
Bosshead S LD
1 301 21  8 
Stand base MF LD
2 301 271  4 
Stand rod 40 cm, 10 mm Ø LD
1 301 23  4 
Stand feet, pair LD
1 666 555  4 
Universal clamp 0...80 mm LD
1 MA90204  8 
Universal indicator paper pH 1...14, roll LD
1 664 0421  4 
Test tube Fiolax 16 mm x 160 mm LD
2 664 131  4 
Beaker Boro 3.3, 400 ml, squat LD
1 664 441  4 
Evaporating dish porcelain, 61 mm Ø LD
1 665 009  4 
Funnel PP 75 mm Ø LD
1 666 573  4 
Stand ring with stem 100 mm Ø LD
1 666 685  4 
Wire gauze 160 mm x 160 mm LD
1 610 010  8 
Laboratory safety goggles LD
1 667 609  4 
Safety gloves, nitrile rubber, size 8 LD
1 666 7031  8 
Teclu burner, propane LD
1 671 9550  4 
Acetic acid, dil., approx. 2 mol/l, 500 ml LD
GHS05 Warning H315 H319 H290
1 673 8400  4 
Sodium hydroxide solution, diluted, aprox. 2 M, 500 ml LD
GHS05 Danger H314 H290
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