Search results for query: ap

That is exactly what I was trying to say yesterday to Yggdrasil - but you explained it better than me. Thanks for helping me with my English :) Also, of great interest to me is the small item in the PVC pipe picture (the 2nd item from the left; the crushed item with ceramic on top). I literally...

...with. But literature says that copper, and metals above it (more reactive) in the reactivity series are weak to sulfuric. I think where "AP" comes into play, is if you have scrap which is mostly copper, since you can recover the copper salts that crash out, "recycle/refresh" the solution...

...to the base metal underneath at higher temperature. And as Yggdrasil is correctly pointing out, before the diffusion takes place, not that much happens, as gold is protecting metals underneath. If you heat treat the pins, you usually disabled them to be processed efficiently with AP...

Question : .....when they go into the AP solution, doesn't the copper base metal begin to dissolve and create a problem (assuming that you don't use excess hydrogen peroxide)? Or, does the gold just flake-off like fingers from a circuit board?

...advice. I know it might be easier for me to just sell everythjng as is, but I DONT WANNA! lol i have spent so many hours taking these things apart that i need to see it through. Start to finish, farm-to-table attitude but more like office-to-bank account LOL i will update as i go. I...

That is why I said that I didn't know if it would play well, it will take the copper eventually, but as you said also contaminate the Silver.

I am actually thinking of the same, however , issues with the same : 3percent peroxide: If I use HCL + 3 - 12 % peroxide + air bubbler, it could take days or weeks and I don't have any place around my house to place an unsealed container. Inside we can't I guess and outside I fear the kids and...

Just add HCl and it will be good to go. I never use distilled water for my AP.

Hello, I'm hoping someone can point me to some information about what to use for different metals when scrapping E Waste. I have been researching for about a month and I'm not finding a clear answer to my scraping needs. I'm looking to get as many metals out of my E Waste as I can, using the...

Testing kit for pm's: dissolve a bit of tin in HCl to make stannous acid. Apply a drop of the solution to be tested on a filter paper and add a drop of stannous. Watch for a color appearing. Purple is gold. Yellow, green and red could indicate pgm's. To expect pm's in solution, you have had...

HCl do not dissolve Gold, unless it has oxidizer present. HCl will take the solder though.

Yggdrasil, I've been studying the AP process, and realized I have seen it done before in a few youtube videos. I didn't understand at the time the chemistry involved, much appreciation for this forum. I love that it is a process that allows for the removal of all metals left in the waste...

Can anyone tell me what happens if you put a little of AR with everything that was in it in a AP batch, after the nitric is used up?

Metastannic acid is not metallic so it won't liquefy. Matastannic acid is a Tin Oxide H2SnO3. But when that is said I think 1300C is too much, it should be enough with a red hot 500-650 C. I have not done it myself so please chime in if I'm wrong.

I never had the luxury of using nitric to eat BM from pins and either time to run AP bucket. So to this day, I only use AR for digestion of any metal based gold materials (that is suitable). You need to get familiar with very dark coloured solutions, which are hard to see through. I regularly do...

You aren't trying to create AP. AP is like a nick name for copper(II)chloride, it is a process to cause a specific reaction. You want to produce copper(II)chloride. This is a basic combination of copper oxide and HCl acid. The reason for the peroxide is to cause clean copper to corrode...

I try to use a minimum of 1 liter for every 125 grams of gold filled, with a strong aquarium pump and fine bubbles. Less AP and it becomes hard to supply enough oxygen to keep it working. One gallon per pound or 450 grams or so. Two gallons will be even better. Even better use an air lift pump...

...I have never heard about the TiO2 issue before. So the Stannous becomes purple as you dissolve the Tin? There is no need to use Peroxide for the AP, so that part should have no impact on the process. Just add some green Copper (corroded) and start bubbling air through the liquid. And as we...

...If you do not have dozens of pounds, depopulate them either mechanically or with heatgun. Then soak the boards in HCL with air bubbling through (AP) - base metals will slowly dissolve, leaving gold foils. Then you will fish out boards from the liquid, clean the foils off them and strain the...

Agreed. I’m just a small time backyard guy so my experience comes from that. I’ve used straight ~32% HCl and also AP to depopulate. Straight HCl will loosen components quickly but you can’t leave it for long time or it will start dissolving copper also. You also can’t leave it for too short...

Exactly what I'm looking for, THANK YOU orvi!

...a bunch of plated watches which i stripped the plated material from... a few rings.. ear rings... bracelets... all with super thin plated gold on them... i've heard AP would be a simple method... perhaps using an acid and cathodes. What would everyone recommend for a bunch of plated jewelery?

The bead looks like copper. Are you bubbling air through your AP? Have you refreshed it with some HCl?

@dpgold: It was not only clean RAM.

Thanks, I'll keep that in mind and look it up if need be in future. the point remains: Don't put your finely divided silver cement in AP (or HCl) unless you want to contaminate it with lots of silver chloride...

Hello guys, I’ve got roughly 10 litres of copper 2 chloride (Acid peroxide) very full of copper, so much that it’s a heavy liquid that is much more viscous than water and it is also full of gold foils and smaller gold particles. I’ve used this solution to do many kg of gold fingers. Because of...

It can be used if its done outside. If you do not have AP already, find some green corroded Copper and add into the HCl. An aquarium air pump is more versatile than using Peroxide over time. For this test though, it might be ok with just Peroxide. Be aware: The HCl vapours will destroy any...

...my question about extensive processes that can take months but works. I have the feeling that it should exist processes that works, are cheap and give a good yield without producing to much waste. However they do not fit the professional recover/refiner. AP process can be said to be one. But...

...gold. The best procedure for gold fingers and pins is to use concentrated HCl with a few mls of copper chloride mixed in. This is called the AP process, and the copper chloride acts as a catalyst, aiding the dissolution of more copper and other base metals, forming more copper chloride...

...Gold Dropping Gold with Sulfur Dioxide gas Refining karat gold without any nitric acid Refining karat NO Nitric acid Refining Gold filled scrap Refining gold filled material Refining jewelers bench sweeps Jewelers bench sweeps part 1 Jewelers bench sweeps part 2 Refining values from waste...