Search results for query: ap

When using AR many new people tend to over do their acid volumes. Often the same people will attempt to use AP or CuCl2 and then use way to little trying to conserve the acids.

Since you're using chloride based solutions, I wouldn't expect any silver to be in solution. Any silver chloride should have been in the solids from your CuCl2 (AP), or the solids in your stock pot. Dave

...boards in acid, only pins and close cut fingers. Trash in trash out is a good expression here as well. Then we use the Copper Chloride etch aka AP process to remove the copper under the Gold. When the foils are liberated we siphon off the liquid and wash off the board pieces and remaining...

...leach will dissolve everything and will be very expensive. It will dissolve the gold as well. Or you stop with adding H2O2 and you're left with AP. Which is very slow and works better on the electronics as said earlier. Adding copper to dissolve everything again makes no sense. Not with...

do it with AP method , no rush

...in #1 on the attached photo. The boards that I started with were much larger and contained way more gold than picture #1. I started with approximately 2 pounds of boards in a 5 gallon bucket with approx 3 gallons of AP. The boards were then removed after 10 days and were completely stripped...

I am doing an experiment to see how I can rejuvenate and reuse AP, I have put a few gold fingers from RAM and covered it with used AP which is now brown (indicating it is CUCL1) I added the bubbler and let it run to introduce Oxygen to transform it back into CUCL2. It should turn light green...

I hope you are not doing this inside in your house!! Solution chart for acids vs metals can be found on Google. And ICs and PCBs produce a plethora of really bad and toxic smokes. That us why they need to be pyrolized before incinerating them.

Thanks!

What would happen if there is aluminum, steel, and other base metals in AP?

...my waste separate until after I cement with copper. Then they get combined to cement with iron and adjust PH. So my question is I have a batch of AP waste that my gold went into solution copper would not cement out so I added nitric to dissolve all gold and then dropped with copperas. Went...

That double valves catch system is great. There used to be a member here that ran something similar on a system using AP. Once he had the foils all loose he could remove the boards with a basket, let the foils settle into an open valve, then close the top, open the bottom and rinse the foils...

18 hrs the ap hasn't even started to work yet. You need to leave it about a week to 10 days and about every 2 days you need to stir the materials around to help the gold flake off. You didn't mention it, but you need an air bubblier also.

I siphon my AP off with a piece of filter wool ty-wrapped around the end of the tube. The tube is connected to a catch flask with a slight vacuum. The advantage of this setup is that you can skim the last bit of surface liquid off without having backflow in the vessel disturbing the particles...

Copper will cement mainly precious metals, but also Mercury if it is in solution (highly unlikely). But Iron will also cement Copper. That is why we recommend the use of Copper when cementing. Be aware that filter masks are not recommended for working with acids. They are to be considered an...

...even hot. Fact that you were able to do it hot is good, so it may work even at room temp. There was a thread where one member posted photos of his AP transistor leach - he was going with them for at least couple of weeks. One more thing to note. Transistors which I processed were heavily...

Did you read these replies, checked your situation, and replied to his questions?

...gases back into the flames. When no more combustible gases come out, one opens the container and let it be kept red glowing in air until completely white from ash. There are plenty drawings and info on the forum. AP is made from HCl and corroded copper or HCl and a drop or two Hydrogenperoxide.

Thanks Golddigger76. I am not comfortable using cyanide at this point in my life. I am just a beginner and I only feel comfortable using AP (Copper Chloride etch/leach) and AR. I filed the corner of one of these items (per FrugalRefiner's suggestion) and it appears to be copper and not brass...

Would adding a solution of NaCl help push more of the chloride out?

Looks like someone needs to make a trip to Yamato, or Kalstein. Get one of these type of setups, and run it parallel with your filter press if you're not changing your setup around.

Simple. Don’t mind the lead. It is in the AP as dissolved PbCl. Let it be there until you have filtered the foils from it, then drop it from the liquid with Sulfuric. Don’t make a problem from something that is not. If you over treat it, it will/can become a problem.

Copper chloride etching, in short AP, or AcidPeroxide. The AP is not what really goes on, but easier to say than Copper Chloride etching.

...first say thank you to the members here. There really is some great info here for new hobbyist like myself. I recently started processing some scrap connectors that have gold pins. To date, I've processed a few different materials all in the hopes of having a lot of foils ready to go. That...

...mistaken as I am very new to this. I have watched NUMEROUS YouTube videos on refining. I feel I have a novice understanding but when it comes to AP I’m confused why you would add a copper rod as it seems if your solution is not saturated it will just continue to dissolve the copper to CuCl2...

...some HCl as well as H2O2, beakers and various lab equipment, I have decided not to start ANYTHING prior to not being 100% sure what I am doing ... Currently looking into the AP method and realising that I need to learn a lot more before handling anything safe ... Have a great Sunday all :)

You did not say what you are using it for. But if it is for liberating the gold foils with the so called AP method. Then you actually do not need any Peroxide at all. Find some corroded copper and put it in HCl and you are there. Add a aquarium air pump and bubble air through the solution and...

...( using rebar to cement out Cu) I had asked for clarification/ more details because I had trouble . I had performed 2 trail runs one with AP on gold fingers the other with magnetic and non magnetic pins. I combined the two batches and used the HCl & Bleach method to dissolve the gold (...

Thank you for that suggestion. I suspect I will have to keep all the AP I currently have for my test runs. I did a 3:1 and suspect I may have a small amount of dissolved gold in solution. It may be a good way to figure out the stannous chloride test that comes later in the process.

What do I do with the black mud?