Help Please First Time Working With AR Solution Is Green Now

[msangwan143]

1.I had about 70 Processors around 370 grams after removing the copper heat pipes
2.Since i did not know the problems with having too much nitric acid in the solution around 600 ml of AR 3:1 rookie method
3.I used Urea for denoxing which was also poor choice i would have used sulfamic acid since i did not know the problems at the time .
4.I used 2 beakers one with 200 ml of the solution and one with 400 ml of the solution since i knew something can go wrong
5. After it stopped dissolving urea which was also probably too much according to what i think after adding SMB brown yellowish gas releases and the solution turns dark for few seconds then starts turning green And a lot of foaming .
6.Now from what i have gathered i maybe accidentally made dangerous substance because solution is light Green and has thick foam at the bottom of the solution
7. Now after knowing what i have done i am kind of afraid how do i treat it off i have kept it at a well ventilated seprate room .
Is there anything i can do safely treat it off
8. Is white residue at bottom is the potentially dangerous part can i filter the rest of the solution to another flask and deal with that later after i know exactly what i am doing
Kindly Guide me to deal with it safely
Thank you
Apologies

 

[Yggdrasil]

1.I had about 70 Processors around 370 grams after removing the copper heat pipes
2.Since i did not know the problems with having too much nitric acid in the solution
3.I used Urea for denoxing which was also poor choice i would have used sulfamic acid since i did not know the problems at the time .
4.I used 2 beakers one with 200 ml of the solution and one with 400 ml of the solution since i knew something can go wrong
5. After it stopped dissolving urea which was also probably too much according to what i think after adding SMB brown yellowish gas releases and the solution turns dark for few seconds then starts turning green And a lot of foaming .
6.Now from what i have gathered i maybe accidentally made something used in explosives because solution is light Green and has thick foam at the bottom of the solution
7. Now after knowing what i have done i am kind of afraid how do i dispose it off i have kept it at a well ventilated seprate room .
Is there anything i can do safely dispose it off
8. Is white residue at bottom is the explosive part can i filter the rest of the solution to another flask and deal with that later after i know exactly what i am doing
Kindly Guide me to deal with it safely
Thank you
Apologies

Welcome.
You really do not dispose of anything until you have treated as waste!
How much HCl and how much Nitric did you use?
How much metallic residue was there after?
At point 5 what happens is that the extra Nitric and HCl dissolves the Gold as fast as it precipitates.
I suggest you filter it well and then cement out the PMs on a solid piece of Copper.

And read these links well with a focus on safety and waste treatment.

We ask our new members to do 3 things.
1. Read C.M. Hokes book on refining jewelers scrap, it gives an easy introduction to the most important chemistry regarding refining.
It is free here on the forum: https://goldrefiningforum.com/phpBB3/viewtopic.php?f=54&t=19798
2. Then read the safety section of the forum: https://goldrefiningforum.com/threads/library-index-thread.22351/post-233795
3. And then read about "Dealing with waste" in the forum: https://goldrefiningforum.com/threads/library-index-thread.22351/post-233794

Suggested reading:
https://goldrefiningforum.com/forums/the-library.101/
https://goldrefiningforum.com/threads/when-in-doubt-cement-it-out.30236/
https://goldrefiningforum.com/threa...le-read-this-before-you-post-about-ore.35743/

Video section: https://goldrefiningforum.com/threa...our-visual-learning-members.35185/post-379931

List of abbreviations: https://goldrefiningforum.com/threads/a-glossary-of-common-terms.21242/post-219169

Forum rules is here.
https://goldrefiningforum.com/threads/gold-refining-forum-rules.31182/

 

[msangwan143]

I had about 600 ml of total AR solution which i separated 200 ml in a 500 ml beaker
And 400 ml in a 1000 ml beaker
When both of them became the same after left them for about 7 8 hrs then mixed them both so 600 ml total solution
If i filter the solution what do i do with the thick white residue at the bottom of my beaker ?
Keep it in a small 10/20 ml beaker separately
After solution filtration Can i use the copper plate from CPU itself to cement out PMs out of the solution ?
Would that be too much copper for the solution or is it okay to use the cpu copper heat sinks for this ?

 

[msangwan143]

What if i filter out the liquids to another beaker and then add water to the white crystals which form Urea + Nitric acid which i can treat with baking soda is it the right way ?

 

[Yggdrasil]

What if i filter out the liquids to another beaker and then add water to the white crystals which form Urea + Nitric acid which i can treat with baking soda is it the right way ?

Read the link gave you about waste treatment.

 

[Yggdrasil]

I had about 600 ml of total AR solution which i separated 200 ml in a 500 ml beaker
And 400 ml in a 1000 ml beaker
When both of them became the same after left them for about 7 8 hrs then mixed them both so 600 ml total solution
If i filter the solution what do i do with the thick white residue at the bottom of my beaker ?
Keep it in a small 10/20 ml beaker separately
After solution filtration Can i use the copper plate from CPU itself to cement out PMs out of the solution ?
Would that be too much copper for the solution or is it okay to use the cpu copper heat sinks for this ?

How do the plate look like?

 

[msangwan143]

How do the plate look like?

It's cpu heat spreader with copper and nickel coating on top

 

[Yggdrasil]

It's cpu heat spreader with copper and nickel coating on top

It needs to be pure Copper.
Remove the plating first.

 

[msangwan143]

It needs to be pure Copper.
Remove the plating first.

Okay they are copper with zinc coating
I will remove the zinc coating with dil Hcl

 

[Yggdrasil]

Okay they are copper with zinc coating
I will remove the zinc coating with dil Hcl

Some lids are Gold plated on the inside.
Check these that has golden color.

 

[msangwan143]

I shall use the ones with golden color
All of them are the same some of them has golden coating