gold powder

[AurumShine]

when we refine gold with aqua regia .gold change its shape yellow powder
than we wash this with hot water and hcl .---why gold shape is brown powder not gold glitter???
Is have any method that i can change brown powder into gold glitter???

 

[Harold_V]

The powder appears to be brown, and does not shine because the particles reflect light in all directions instead of one. If you'd like to see the material shine like gold, all it takes is to abrade it with a flat surface. A porcelain spatula can be rubbed on the powder and convert it to a shiny surface, assuming the powder in question is clean enough. Dirty gold may not cooperate.

Harold

 

[AurumShine]

thanks harold .......you reply very quickly....

 

[nicknitro]

Glad you decided to refine again instead of just melting gold foils.
Congratulations, and good luck with your end results.

Nick

 

[AurumShine]

nicknitro i also melt my gold foils ,glitter with borax .and i use aqua regia on integrated circuits, cell phone circuit ,pin less processor,CD-ROM lens ,and those parts in which hidden gold and less karat gold .such as video card ,network card and many more.