Hey,
Ive got a korad 31v constant current machine. Im using a hot plate with a 2000ml beaker. Ive got a pure gold coin and a 14g copper wire.
I set my machine to 31v and .5 amps. Used a pinch of sea salt, a bigger pinch of sodium citrate and 2 drops of light cornsyrup. And 1600ml of distilled water. With that setup it went from clear to loght blue to purple in about 40 min.
Next time i tried i went with same setup and .1 amps. It went clear to yellow to light green.
Ideas?