If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.
You already know Dokkio is an AI-powered assistant to organize & manage your digital files & messages. Very soon, Dokkio will support Outlook as well as One Drive. Check it out today!

Introductory Sequence: Melting Point

Page history last edited by jbfriesen 12 years, 8 months ago

Summary of Procedure:

In this exciting conclusion to the first three experiments, the two unknown compounds are identified by their melting points and comparison to known compounds.

2010 Student Handout: Melting Point

2008 Student Handout: Melting Point

Positive aspects of this experiment:

+ The combined information from the first four experiments gives a definitive identification of the unknown compounds.

+ Melting point determination is a basic Organic Chemistry technique.

+ Melting points can be done with a small amount of sample.

Neutral (may be positive or negative) aspects of this experiment:

± It takes patience to wait for the oil bath to cool down. However, this is usually a short experiment. In the past, I have asked students to determine the melting points of each unknown which tends to make the experiment last longer.

Negative aspects of this experiment:

- Thiele tubes are messy. This is an oily lab.

Inquiry & Extension Ideas:

● The variance of literature melting points is a good discussion topic.

Data Links:

Student Comments:

Student_Comments_2008_MP.doc

Student Comments 2007: Melting Point

Photo Gallery: