How can two solids in a heterogenous mixture separated?

Subject: How can two solids in a heterogenous mixture separated?

Date: Tue Sep 21 23:41:52 1999
Posted by Dave Peters
Grade level: undergrad School: University of Saint Francis
City: Hamilton State/Province: Indiana Country: USA
Area of science: Chemistry
ID: 937971712.Ch

Message:


This question addresses a variation on a classic elementary chemistry 
question:  what is the best way to separate a mixture of salt, sand and 
water?  The usual answer is filtration followed by distillation.  Suppose 
that we distill first.  How can the salt and sand then be separated?  Can 
we heat until either the salt or sand melts, separating the two 
substances at that point?  

Thank you,
dp

Re: How can two solids in a heterogenous mixture separated?

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