Gold plated jewelry low grade

[godslavejose]

I have tried gold plated jewelry low grade(some are gold coloring) with gold stripping cyanide process. Not effectively stripped. I thought the layers of gold plating is prevent the gold layers. I dont know the name. Like flux or enamol. How to remove the layers before the process? Please suggest any solution.

 

[Lino1406]

"Gold plated cyanide process" - what was used?

 

[godslavejose]

"Gold plated cyanide process" - what was used?

Gold stripping agent 150ml and sodium cyanide 20gm to 1 liter water.

 

[Lino1406]

Missing: hydrogen peroxide cautious addition or air bubbling, under hood

 

[godslavejose]

Missing: hydrogen peroxide cautious addition or air bubbling, under hood

oh, if i use air bubbling in hood then how much time will take to stripping?

 

[Lino1406]

Not sure, but won't go without

 

[godslavejose]

Not sure, but won't go without

Ok will try. Thank u for your suggsstion.

 

[nickvc]

As lino has said you need an oxidizer and it works faster at a warm temperature ,not hot but warm, if you have a coating over the gold plating it really is a pain to remove , maybe light incineration but care is needed also good ventilation, maybe try with great care concentrated sulphuric again warm on a sample and see if that works.

 

[godslavejose]

As lino has said you need an oxidizer and it works faster at a warm temperature ,not hot but warm, if you have a coating over the gold plating it really is a pain to remove , maybe light incineration but care is needed also good ventilation, maybe try with great care concentrated sulphuric again warm on a sample and see if that works.

incineration not working i tried. But sulphuric is good idea. I will try. Thank u mr.nickvc

 

[justinhcase]

Put it all in a large drum mixer and agitate, the items rubbing against each other will brake-up any ceramic or polymer covering, incineration is also wise to drive off any volatiles.
I use a small cement mixer that happens to fit a standard sized plastic drum tightly.
Easy to swap out and has water tight covers.