Seperation of Mixtures

 

 

 

Hazards: 

Methanol is very flammable.

 

Materials: 

distillation apparatus with thermometer

thermo well heater and lab jacks

graduated cylinder

small crystallizing dish

matches

 

Procedure: 

 

Solid-Solid:

Iron filings

sucrose

large white stir bar

beaker of water

Separate sugar and iron with a magnet or by dissolution of the sugar in water.

 

Solid-Liquid: 

Evaporate water from a brine solution

salt water mixture

crystallizing dish

hot plate

 

Liquid-Liquid

Distill methanol.  The distillate can be lit with a match.  Allow at least 30 minutes for the distillation.

50:50 methanol and H2O mixture

blue dye

 

Liquid-gas

Shake a bottle of soda water.  Open the bottle and show the release of gas. 

 

Disposal:

All materials are disposable.

 

 

 

 

 

To schedule a demonstration, please send an email to the demonstration lab.

 

Contact:

Eric Camp

Lecture Demonstration Technician

Bagley Hall 171

(206) 543-1606

ericcamp@uw.edu

 

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