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Detection of multivalent alkanols

Detection of multivalent alkanols

LC2.3.2.3

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Description

In this experiment, multivalent alkanols are detected. This is done by adding copper sulphate solution to various alkanols and bringing them into an alkaline environment with the help of sodium hydroxide solution. Multivalent alkanols react in a dark blue to green colour (complex formation), monovalent ones do not react. The students learn about and apply a proof for multivalent alkanols.

Components of equipment sets

1	6753410 4	Water, pure, 5 l
1	6729600 4	Copper(II) sulfate-5-hydrate, 100 g Danger H302 H318 H400 H410
2	665997 4	Graduated pipette 10 ml
1	666003 4	Pipetting ball (Peleus ball)
1	30945 4	Universal pencil
1	667057 4	Test tube rack metal, 20 mm Ø
4	6640421 4	Test tube Fiolax 16 mm x 160 mm
4	667253 4	Rubber stopper solid, 14...18 mm Ø
1	610010 8	Laboratory safety goggles
1	667609 4	Safety gloves, nitrile rubber, size 8
1	6719720 4	Ethanol, denaturated, 1 l Danger H225 H319
1	6744320 4	1-Propanol, 1 l Danger H225 H318 H336
1	6719800 4	Ethylene glycol, 250 ml Warning H302 H373
1	6721190 4	Glycerine, 99%, 50 ml
1	6738400 4	Sodium hydroxide solution, diluted, aprox. 2 M, 500 ml Danger H314 H290

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Detection of multivalent alkanols

Description

Components of equipment sets

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