Martijn
Well-known member
I have precipitated all the gold from this batch with copper powder and I want to know if there is any copper left in the gold powder and find out how well i did.
It's about 70 grams now after processing the wash solutions.
So back in the AR for a second refine.
A fresh 1.5kg SMB just came in so I have a solution ready to make beautiful lightbrown gold dust.
I used up most of my homemade HCl so back to making some more.
The 300ml i have left might not be enough for AR and washing the powder.
New destillation setup without the refill flask and the hose to the beaker now has a bigger raise in it making the fumes partially condense in the hose and run back in the small flask.
This is probably a concentrated HCl, looking at the color. I'll add that to the beaker after every run.
I captured the chlorine waterfall under the inverted funnel on video. Cool to watch it fall down.
I love watching chemistry in action!
Gold dust waiting for a new warm bath
I'll try to keep nitric use as low as I can to see how much is needed for fine powder processing it slowly.
It's about 70 grams now after processing the wash solutions.
So back in the AR for a second refine.
A fresh 1.5kg SMB just came in so I have a solution ready to make beautiful lightbrown gold dust.
I used up most of my homemade HCl so back to making some more.
The 300ml i have left might not be enough for AR and washing the powder.
New destillation setup without the refill flask and the hose to the beaker now has a bigger raise in it making the fumes partially condense in the hose and run back in the small flask.
This is probably a concentrated HCl, looking at the color. I'll add that to the beaker after every run.
I captured the chlorine waterfall under the inverted funnel on video. Cool to watch it fall down.
I love watching chemistry in action!
Gold dust waiting for a new warm bath
I'll try to keep nitric use as low as I can to see how much is needed for fine powder processing it slowly.
