1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Very quick question regarding melting point and purity

  1. Sep 16, 2013 #1
    1. The problem statement, all variables and given/known data
    For the following melting point, indicate what might be concluded regarding the sample purity:

    Melting point: 147ºC (dec.)

    2. Relevant equations
    I assume that (dec.) means that the sample decomposed.

    3. The attempt at a solution
    I am wondering if this means that the sample is practically 100% pure because it decomposed in such a small temperature window, or if the fact that the sample decomposed means that no useful information can be obtained.
  2. jcsd
  3. Sep 17, 2013 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    I would say the latter unless you know something more about how a pure sample of the analyte should behave. If it is supposed to melt and it decomposes, you have a reactive impurity. In my experience, reactive impurities mean strong mineral acids or oxidizers.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Very quick question regarding melting point and purity
  1. Melting point (Replies: 8)

  2. Melting points (Replies: 3)

  3. Melting Points (Replies: 12)