Search results for query: ap

H3llo folks! I just installed an aquarium air pump onto my AP solution. But my solution looks very dark brown/black. Does it still work, do i revive it somehow - any advice?

I would like to clarify: in AP solutions there is no silver but silver chloride, but how can I understand if there is silver or how to precipitate it. Thank you

...for the hobby refiner or small scale operation that comes across bucket sized lots of circuit boards. This thread is exclusively for using the AP process to release gold foils which can be processed once enough are collected. That will be discussed in another thread so as not to make this...

...button. I think this is a good yield for what i started with based on estimates throughout this forum. Now here is the issue: I want to clean my AP solution for next use but it's being stubborn - and i'm not a patient person. Here are the details - hoping i don't forget anything: (I have...

Thank you. I'll do a research on the forum for how to process AP step by step guide. Robert

In the video section there are two video's by Sreetips one using nitric and one using AP. HERE & HERE The nitric is much quicker and the dilute AP is much slower, actually much much slower. It would be interesting to see on a time line where the 2 parts Hydrochloric Acid 1 part peroxide falls.

Thanks, Joe. You absolutely right, I'll do that. Is there any forum link where I can find proper step by step AP guide including the amount of chemical I have to use? Robert

AP = Acounts Payable?

Have you tried doing it in AP? It works pretty well, just takes longer.

Just to add. AP is not a refining method nor is anything with a furnace. That is recovery and concentration.

I am a bit confused about AP/Cupric Chloride that you explained above so I searched the internet about how to make it, can you tell me if the way to make it in this Video is correct?

I only run smallish lots of pins in AP, and then only non kovar pins. Kovar seemed to break down better in hot ferric chloride for me and it doesn’t affect my AP. I always wanted my AP to stay copper based as much as possible except when testing it on various items early on. AP can be a very...

You can start by reading here

Look into air lift pumps. I use small ones in my AP and waste stream buckets. They work much better than pumping air into them.

I have really got to get away from using the term ,"AP".

Hi I have an AP made from hcl and hydrogen peroxide. It is soaking mixed pc and phone parts for gold foil separation. The bubbler is on and the solution has gone very dark. Does this colour change signify that the AP is working/active? Or is the bubbler just kicking up debris? MM

Thank you, Yggdrasil. I'll definitely want to do more study on AP process. I know it all depends the materials I want to proceed pin (kovar or not) or fingers etc. Do you mean corroded Copper = oxidized Copper? Sorry I meant above, where can I start my study on the forum. Is there any basics...

I think that sheet was made in the time when here on the forum nitric leach was prevalent and AP came along because nitric was getting both costly and difficult for back yard refiners to acquire.

Hi everyone, Im new here and appreciate your help before i start .... I have accumulated some gold scrap over the years and its kind of sorted ... (boards, pins and other plated parts. chips, and so). I would like to start and process this parts, thinking the best way would be AP ... as i have...

OK! My idea is pretty crappy as it turns out. The metal wool retains a huge amount of acid and does not drain hardly at all! That's a huge issue right there. Not at all safe and it makes the entire process very difficut. So, submerging in AP is still the best process I've tried. Yeah, AP takes...

More commonly (and wrongly) known as AP.

Yes that's what I do at the moment but HCl is £15 for 5 litres now in the UK and I'm just accumulating more AP solution than I need. What do you mean by "fouling" the solution? As far as I understand Iron is not a big deal since Ferric Chloride also etches Copper; the solution seems to keep...

After an AP process is finished, if done correctly the Gold will be as foils in the liquid and it is just to scoop/filter it out.

AP is actually a Cupric Chloride etch, but has been given the name AcidPeroxide due to how it was started in the beginning.

I read it before, copper sulpate can't react with copper as copper chloride do، so copper sulphate will not oxidize any copper.

If you put magnetic pins in AP, the dissolved copper will cement out on it and it will be red or black when oxidized. I think that's what happened here. Just keep it in AP without any ferrous metals and the 'mystery metals' will dissolve. HCL does not dissolve Copper. With air it does and then...

This link should HELP

Until yesterday I didn't know anything about the high concentration AP. Are you saying the AP will strip the solid gold straight off the board? I was under the impression it would only work with gold powder. I have not yet found much information about using High conc AP on fine gold but it...

AP is cheaper Dissolved the tin and base metals leaves foils intact AP is easy to make AP can be reused

Typically AP is to allow the gold to come away from the underplate by eroding the underplate. The gold should appear as loose foils. At this point rinsing the foils free and checking to be sure the process was complete should allow you to collect the foils on a filter and separate the mass of...