Ceramic cpu AMD and k6

[machiavelli976]

Don't play too much with the filter paper .

Fold it like a flower but don't re-size the bents if you somehow are not satisfied. If you insist ,too many cellulose fibers may loose and float into filtered solution. Yes , they might burn totally at melting but an ash is an ash and once trapped inside the gold powder , it doesn't mean automatically will float above liquid gold according to the laws of physics (density difference ).

 

[archeonist]

Don't play too much with the filter paper .

Fold it like a flower but don't re-size the bents if you somehow are not satisfied. If you insist ,too many cellulose fibers may loose and float into filtered solution. Yes , they might burn totally at melting but an ash is an ash and once trapped inside the gold powder , it doesn't mean automatically will float above liquid gold according to the laws of physics (density difference ).

Yes thats correc,t and if you re-size the bent too much there is also a risk of tearing the filter paper.

 

[archeonist]

i finally could clean my gold powder. Therefore I dissolved my gold nugget again, I added a few drops of sulphuric acid, and I diluted the solution with ice.
After filtering I dropped the gold with smb. After a few washes I melted the gold using a bunsen burner, no mapp gas again. This time the gold melted totally and a beautyfully shiny surface was formed. The flame of a bunsen burner is a little bit to low in temperaturen to get a good round button, but I am very satisfied with the result. The button weighs 2.19 grams. And before the cleanup this was 2,23 grams. I still have some gold left that I recovered from my washes. I have dropped this gold too, and I estimate that it will be about 0.1 or 0.2 grams.

 

[MarcoP]

Nice clean button, congrats!