Question

Why is potassium fluoride added to the electrolyte in the extraction of sodium from fused, sodium chloride?

Answer 1

In Down’s method for the extraction of sodium , the melting point of the electrolyte is lowered by adding both calcium chloride and potassium fluoride.

Answer 2

A. Pure sodium chloride does not conduct electricity

B. Potassium fluoride prevents the sodium produced from attacking the electrodes

C. Potassium fluride increases conductivity

D. Potassium fluride reduces the temperature at which sodium chloride fuses

E. the potassium fluride acts as a catalyst