Introduction to melting point determination experiment

introduction to melting point determination experiment

Dont feel you have to push the tube way into the flame.
Use the smallest amount of material that can be seen to melt.Provides electrical protection for the unit.Place another lens cover on top of the crystals and move the magnifying glass over the well.A pure substance generally has a melting range (the difference between the temperature where the sample starts to melt and the temperature where melting is complete) of one or two degrees.Now science turns into art.If the unknown sample is identical to the known sample, the melting point will remain unchanged.
Magnifies the sample (Fig.
Provides illumination for samples.If the cap becomes loose, the thermometer tends to go belly-up, format factory setup 2012 and the markings turn over.Yes, you may have to use fresh pieces of paper.Give it a try.Actually, taking a mixture melting point, the melting point of a mixture, is more correct.The set-up for the procedure.Insert the thermometer through a hole in a cork, and clamp the cork to the ring stand as shown.Turn the on off switch to OFF.