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Posted by on Saturday, August 11, 2012 at 8:08am.

Please can anyone help me with the following:
Filter paper is a poor material on which to powder a solid before introducing it into a melting tube. Why?

Thank you!

  • Chemistry - , Saturday, August 11, 2012 at 2:01pm

    There are a number of reason I wouldn't use filter paper to break up a solid.
    1. It isn't strong enough to withstand vigorous grinding.
    2. The powder will be mixed with fibers of paper which will then become part of the melting process.
    3. An extension of #2 is that the cellulose COULD affect the melting point due to mixed melting.
    4. A small amount of sample (a few milligrams) will be lost on the paper during grinding and/or will not be transferred to a melting tube.

  • Chemistry - , Thursday, August 14, 2014 at 6:47pm

    the melting point of pure benzoic acid and pure naphthol are 122.5 and 123 degrees celcius respectively. you are given a pure sample that is known to be either pure benzoic acid or 2- naphthol. describe a procedure you will use to determine the identity of the sample.

  • Chemistry - , Wednesday, August 3, 2016 at 9:26pm

    I don't know the answer

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