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Melting NaCl (table salt)?

  1. May 3, 2012 #1
    I was thinking of making an MWIR lens from table salt, which is quite transparent for it.
    That needs a big, monolithic cylinder of salt - 3x1 cm.
    Now, growing it the classic-oversaturated-solution way would take forever, if feasible at all.
    And i want to try to just melt some salt and cast the piece that way.

    So, primary question - what kind of safety concerns are there about heating up and melting table salt?
    Would it just melt, or start decomposing/reacting somehow?

    And a secondary question - is there a point?
    That is, would it solidify into something monolithic without using Kyropoulos method or similar?

    Bonus question - given the goal above and a set of household materials, how would you proceed to achieve it?
  2. jcsd
  3. May 3, 2012 #2
    Last edited: May 3, 2012
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