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In order to obtain sodium in industry, you need to be as efficient as possible. Since

in solution, the produced sodium will immediately react with the solvent, the sodium compound, in this case NaCl, needs to be fused (molten).

The less heat you use to fuse the substance, the more viable the process will be, and you would add CaCl2 or CaF2 to lower the melting point of NaCl from around 800 degrees centigrade to 580 degrees approximately.

You can probably use Strontium or Barium Chlorides as well.

And don't worry these wont mix with the sodium or anything, the produced liquid sodium, as it has very low density, will merely float and be poured off.

Hope this Helped

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11y ago
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Q: Why calcium chloride and calcium flouride are added to the electrolyte in the down cell during extraction of sodium metal?
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