Non-Chemical cementing gold from ar solution with magnesium

[arthur kierski]

i just saw in u-tube a process of cementing gold from computer parts from ar with magnesium foil-----in the video ,one sees the yellow gold powder and i noticed that cementing happened without elimination of nitrics---
please could some members coment this facts?
i cemented rh from rh sulphates spent solutions with magnesium and it worked very well
thanks all,
Arthur

 

[qst42know]

Magnesium is higher on the reactivity list than even aluminum. All the other base metals in solution would cement. Very effective but a dirty choice.

I expect your Rh solution was reasonably clean to start with.

 

[arthur kierski]

yes,you are right.-------the rh solutions did not have base metals----
thanks,
Arthur

 

[macfixer01]

Magnesium is higher on the reactivity list than even aluminum. All the other base metals in solution would cement. Very effective but a dirty choice.

I expect your Rh solution was reasonably clean to start with.

Hmmm interesting. Even more so since I still have a 110 pound drum of finely powdered magnesium I don't know what to do with. I used to sell a few chemicals to fellow fireworks enthusiasts, but they were much more interested in magnalium not magnesium.

 

[Irons]

I wouldn't put Magnesium powder in a strongly acidic solution. The reaction would be quite violent.