Salt and Vinegar Gold Recovery - day 6

Nothing much new but here is a picture of the bare pcb fingers.  

Most of the gold is off.  Still has 2 days to go at least.  These may stay in the beaker until the 11th due to my day job.

Salt and Vinegar Gold Recovery - day 4&5

So all the exciting stuff has already happened.

We just have the seafoam blue liquid.  You can see some gold foils when stirred up.

They are there.  Tomorrow I will pull out a board or two to look at.

Salt and Vinegar Gold Recovery - day 3

So this is around 1am.  The liquid turned a dark emerald green.

It also had a lot of green bubble around the fingers.

I stirred it up and added about 20-40ml of hydrogen peroxide.  I did this for no other reason than I only had a little left and wanted to see what it would do.  Well it started foaming up pretty bad.  There was also some dark brown foam.

By the morning it turned to that seafoam blue color.  This is a thick liquid.

From this point on you cannot see much.  I will just have to wait.

Salt and Vinegar Gold Recovery - day 2

So it has been 24 hours and the liquid is now a really dark blue.

The liquid was stirred and you can see gold foils.

Hard to photograph as they move fast.

Salt and Vinegar Gold Recovery - Again, day 1

In the last series of posts I recovered quite a bit of gold foils from 200 grams of trimmed gold circuit board fingers.

I also for the fun of it dropped 0.8 Troy ounces of copper out of solution by adding some scrap aluminum to left over waste.

This time around I am using the same formulas as before.  The only exception is I have 239.4 grams of trimmed fingers.  Plus some leftovers that still had gold foils from the last batch that need to be rerun.

All set up and ready to go.  I add all the vinegar, salt and hydrogen peroxide and turn on the air.

This after just 30 minutes.

Will post updates daily on this batch.  Stay tuned.