August 19, 2006 8:51am CST
Can sodium be replaced by pottasium in sodium chloride?
16 Sep 06
If you make a melt of sodium-chloride at 800 degree Celsius and put on top of it liquid potassium (melting point 759 degrees Celsius)and put the whole system under a high enough pressure of dry Argon, then you should be able to connect the potassium as anode and run an electrolysis to replace the sodium by potassium. You probably need a direct current voltage of lower than 1 Volt, because the electronegativity of K and Na is differing not much. (Is a someway useless process, because you might buy instead of sodium-chloride a quantity of potassium-chloride easier.)