Filtration problems and small gold particles in solution

[Ghazx]

Thanks for helping me with this

 

[Ghazx]

Hello everyone
During work one patch was unusual
After pretreatment and AR dissolving when adding SMB the whole patch turned to white ppt
I filtered it and separated the precipitate.

It looks like fiber material
By searching it can't be metastannic or palladium ( i think)
Any suggestions about it
It is in
first container in the video

 

[Ghazx]

Sorry i don't know how to upload videos here is gif

 

[Yggdrasil]

Sorry i don't know how to upload videos here is gif

No need for videos.
Picture with description is way better.
What was the material dissolved?

 

[Ghazx]

No need for videos.
Picture with description is way better.
What was the material dissolved?

Slag from gold-laden carbon
Pretreatment with nitric acid
By the way they ashed the carbon before smelting

 

[Yggdrasil]

Slag from gold-laden carbon
Pretreatment with nitric acid
By the way they ashed the carbon before smelting

Same stuff as before.
It is impossible to say what it is without testing.
I'd guess some kind of insoluble Sulfite or complex thereof since it emerges with SMB.

 

[Ghazx]

So can i use copper cementation with such dirty Pregnant AR solution to precipitate gold