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