strange reaction , advice needed

[Lino1406]

I meant, if aluminum is confirmed, you can also use HCl to consume it not necessarily NaOH, to avoid rinsing. Then decant and proceed to normal procedure - meaning A/P to consume copper and nickel

 

[kurtak]

Though this type connecters are often made of aluminum - they can also be die cast which is primarily zinc

To confirm aluminum - or - zinc - test with nitric

Both aluminum & zinc will react with HCl

Aluminum does "not" react with nitric - but - does react with zinc

Kurt

 

[donald7755]

It doesn't need to be hot it depends on how much of a rush you are in. Hot lye isn't a good substance.

will the lye strip the gold off and then i refine as normal ?