Hi there Cableman! First! You diden't loose your other gold as long as you diden't throw away the solution. It's still there! Your foils. Gather them from the bucket, rinse them and then give them a boil in alittle HCl cuz, there may still be alittle copper and/or nickel on them that may interfere with dropping with smb later. the HCl may change color to a green if there were …
Mistakes were made. Used thiolsulphate to leach gold plated pins, got a clear solution. Then added hcl to get to a ph of 3-4 and added smb. And then realised smb doesn't work with thiolsulphate. The solution turned a yellow murky colour, i suspect the ph caused the thiolsuphate to degrade...
I took about 500 ml and dissolved in hcl Clorox. I filtered and precipitated with smb, no problem! I wound up with about 17 grams of gold, still no problem considering I didn't know what to expect. ... This is the 3rd go around and each time I have to incinerate once the solution quits leaching gold before it will start to leach again. The ...
This is in direct contradiction to the HCl/Clorox leaching method where we are told copious amounts of HCl must be added to lower the ph to 1-2. Sodium hypochlorite bleach exists only because sodium hydroxide (a base - NaOH) is added to bleach to raise the ph to over 12, preserving the NaClO and preventing it from becoming hypochlorous acid.
General Gold Refining Discussion. HCl-Clorox Experiment. Thread starter skyline27; Start date ...
Coarse gold requires long contact and should be removed by amalgamation. Pyritic ore or concentrate requires a dead roast before chlorination; thoroughly oxidized ore may be …
HCL - clorox Maximum metals solubility in Aqua Regia ? SMB mixing ... Iodine gold leaching Fume scrubbing Rhodium Tests. Testing for Rhodium #2 ... Reuse of (AP) HCL Refining gold sulphide ore concentrate Cell Acid Processing questions. Silver Cell . Help! New to forum! Have media from plating operation
I had a small beaker sitting on the bench that had approximately 1+ gram of gold in it. The gold had been dropped with HCL/Clorox then washed and dried. It was just waiting to be put with more gold before melting. I had another beaker that had some gold foils in it from some pins and fingers...
Details: Gold plate was ground off from an iron nickel alloy. Sludge is Gold bonded to that alloy and abrasive grit. no estimate possible on percentages of each metal, or grit. Goal: Want to try leaching with HCl and Bleach, using SMB to precipitate. Failure: root cause- …
I havent done the hcl/clorox as of yet as I bought cheap filters that ended up dissintegrating and my current mush is paper and gold junk basically due to filter disolving apart...going to reclean with hcl/peroxide but doesnt really get ride of paper content in it.
it was mentioned that one can use 15% hcl ------i would like to know if it is 15% volume(150cc hcl in a liter) or 15 % of 32%hcl(that is 480cc of hcl per liter)?? thanks Arthur
2Au + 6HCl + 3NaClO --> 2AuCl3 + 3NaCl + 3H2O From the equation theoretically, two moles of gold (2 x 196.97 grams) or 393.94 grams of gold will react with six moles of HCl acid (6 x 36.46g) or 218.77 grams of HCl and three moles of sodium hypochlorite (3 x 0.0134g) or 0.0402 grams of NaClO -----> to yield two moles of gold chloride (2 x 303.325g ) or 606.65 …
A quick read on wikipedia says the easy answer is to rince with HCl, but I am trying to avoid using that just yet. It also suggested that excess chlorine ions or an ammonia water rinse (NH4OH) might be effective. I hesitate to add chlorine ions with bleach (hypochlorite), for fear of dissolving the gold (Acid-Clorox).
HCl is actually hydrogen chloride (HCl) gas dissolved in water. The vapours are pure HCl. They will rust any iron or steel they come in contact with. They will also corrode many other metals, such as aluminium. They are poisonous in a confined area. The method is safe to use indoors in a non-populated room. The fumes are not produced after the ...
The best way to dissolve base metals such as copper or lead that appear in electronic scrap or other gold-bearing materials is by using an aqueous hydrochloric acid solution. This method strips away unwanted elements, …
Butcher----i am dealing with powders that was already incinerated----already passed thru nitric to eliminate base metals and already passed thru ar or similar to extract gold,pd pt etc----these powders in my mind were bare (no more pms) -----i prepared the leach solution as described by you in the thread and added these suposed bare powders ...
Does this mean I must dilute my 12M HCl 12:1 with distilled water to achieve concentrated HCl acid that is used in... Forums. New posts Search forums. What's new. New posts Latest activity. Members. Registered members Current visitors. ... Gold Refining Processes. Chemical Processes & Chemical Discussion . 12M HCl solution question. Thread ...
If one has a sulfide gold ore and roast it to free the sulfur then ball mill to be able to leach, could an ecell be used to recover the gold. Part of me seems to think from the little I've learned that the electrical contact with the gold must be open to the sulfuric acid, but part of me seems to think it maybe a good recovery way I also wonder does the copper leached into the …
magnetite can be roasted crushed and re-roasted making it into hemitite (which is also roasted), hemitite will react with acid's, where magnetite will not very well, sulfuric strong will not work, but dilute it will work, and it will dissolve the iron (or iron oxide) making ferrous sulfate FeSO4 from hemitite Fe2O3 in dilute sulfuric acid H2SO4 ...
Edit: HCL can not dissolve gold. This means that the chlorine is what dissolves the gold and that the HCL is just there to dissolve the chlorine? If too little HCL is used the chlorine will escape in gaseous form, causing the dissolved gold to reprecipitate. If too much HCL is used, the chlorine will be too dilute to dissolve the gold powder.
Let me make sure this is correct. 1.Harvest fingers(I use a wet Tile saw with a Diamond blade) No Bling, Bling 2.Soak in two buckets with a mix of 3:1 Peroxide/Clorox 3.Soak Gold Flakes in Clorox/HC1 4.Drop with SMB 5. Test with Clorox/HC1 Stannous Cloride 6. Wash mud test for purity 7. Smelt it 8. Hide it in Secret Bunker under house I have seen many very …
goodday everyone am new this site and i want to start recovering gold from e-srap, mainly computer boards. i have been reading a lot in the site for the last four days and starting to learn. but am having difficulties understanding some terms. so if someone can, please help me understand. 1-...
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. R. RaoOvious Well-known member. Joined Mar 28, 2012 ... or clorox,isn,t it a better option than using clorox when leaching cats through hcl/cl method.
Leaching pure gold with an acidic sodium hypochlorite solution has been demonstrated to be effective. The initial rate of gold dissolution was extremely rapid. In a …
If the hcl/cl solution using clorox which is 5-10% free chlorine will process a in 3-3day batches heated. Would using pool cleaner chlorine which is 90% free chlorine do the job faster? in less batches? Just brainstorming. thanks, steve
The use of chlorine is both the cheapest and most plentiful method for leaching gold. When you mix sodium chloride and hydrochloric acid together, you produce a form of electrolysis that removes gold from rock and soil.
Allow four hours for the gold to dissolve, stirring every 20 minutes. The chlorine reacts with the gold inside the ore to form gold chloride. Filter …
Yes, more slowly than aqua regia, but faster than hydrochloric acid and peroxide. It's best used on very thin or finely dispersed material, like the foils from gold plated fingers or precipitated powder. If the wire is thicker, you'll struggle as the continued additions of clorox neutralize the acid. Dave
Gold extraction to the pressure oxidation leach solution is rapid and complete in one stage, thus eliminating the need for further cyanidation. More than a century ago, gold ores were treated …
AC - An acronym for Acid Clorox, a combination of hydrochloric acid (HCl) and Clorox bleach. Clorox is a brand name for laundry bleach which is a 3 to 8 percent solution of sodium hypochlorite (NaClO). ... This combination can dissolve gold, platinum, and other metals. (aka A/C) ... It is a leaching solution that can be used to ...
Gold Refining Processes. Beginners Gold Refining Process Forum . hcl cleaning ... . hcl cleaning ...
The crystals in the container should be a pale green/white color. If they are brown, they won't work. Well you just solved a 30 year old mystery for me...
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. ... Excess Chlorine is not a problem while leaching, on the contrary to precipitation. ... I covered the material in a 60/40 solution of HCL/H2O2, addded a cup of Clorox, and put the airtight lid on with an ...
Can anyone on the forum advise whether brown or black powders leached and precipitated using either iodine or chlorine be redissolved in AR and again precipitated using SMB. Donnyb rook Australia