Nitric Acid
Hello, I have half a pound of gold fingers, plus lots of gold plated pins, connectors (like wifi antenna ends), and ribbon fingers. Now I'm ready to separate the gold starting with Nitric Acid & distilled water. I attempted to keep my material clean, removing all …
Gold Refining Purification Process
This is a free tutorial on gold recovery method using nitric acid to extract pure gold from old gold and scraps of gold by process of dissolving unwanted metals.
nitric acid
At 20C, the specific gravity of 52% nitric is 1.3219. Therefore, 1 liter weighs 1321.9g. Multiply 1321.9 x .52 and this gives 687g of nitric per liter of 52% nitric. Do the same for the 70% and you come up with 989g/liter. Therefore, 36 baume' nitric is about 687/989 = about 69.5% as strong as 42 baume nitric.
Does nitric acid damage gold
If I clean this sediment with nitric acid, will nitric acid damage the gold dust . Reply. Martijn Well-known member. Joined Aug 3, 2014 Messages 3,052 Location Netherlands, Zeeland ... for Melting Casting Refining Gold Silver Copper Aluminum Brass Precious Metals DerJingX. $125.99. DIIKEN AI Smart Ring JCRing Gen4 Fitness&Sleep Tracking ...
Inquartation and Parting Refining Process
Inquartation involves initially diluting the gold in the refinable material to about 25% (literally 'quartering' the gold) by melting with the appropriate addition of copper or silver, granulating the melt so as to generate a high surface area …
Sodium nitrate..
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. 1; 2; Next. 1 of 2 Go to page. Go. ... Save the Na/K sulfate salts from the nitric acid reaction and use them to make more NaNO3 using saturated Ca(NO3)2 solution and simple filtration. Steve . Reply. Reactions ...
neutralize nitric acid in Aqua Regia | Gold Refining
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. J. john_paok ... My scrap is 40grams of ppins and boards from cell phones and I had add 80ml Hcl acid and 10ml nitric acid and o teespoon 5grams of sodium nitrate. Then I had add 25 grams Urea and 20 grams of SMB. ...
Nitric acid
When you use nitric, the cost will be higher than the yield. For 200 grams of copper or brass pins, you will need 800ml of nitric. From 200 gram plated pins, you can expect 0.5 …
Inquartation with sulfuric acid
Always dilute by carefully pouring acid into water. Using the concentrated acid to part gold and silver is not a good idea. It is just too dangerous. Nitric can be hard to get, and can be expensive, it is not a safe chemical but it can be worked with if done safely. With the sulfuric you may not get a second chance if crippled for life.
Reusing NO2 from nitric acid | Page 2 | Gold Refining
For aqua regia refining I completely agree with your advice against using nitric acid to remove silver chlorides. The process I was talking about does not use aqua regia, only nitric as a parting acid. The resultant gold sponge, which has never dissolved, is slightly contaminated with silver but it is metallic silver, not the chloride.
No nitric acid
Is there a way to extract gold using a chemical process without using nitric acid ( most people can't buy this here ) ... Forums. New posts Search forums. What's new. New posts Latest activity. ... for Melting Casting Refining Gold Silver Copper Aluminum Brass Precious Metals DerJingX. $200.00. Hydrotreating and Hydrocracking Processes in ...
Making Nitric Acid?
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. E. Ellias Well-known member. ... causes the resulting nitric acid to go up in vapors as it is formed, or to be absorbed by the Calcium Sulfate. The result is that your nitric literally gets trapped in the mix or ...
Refining Silver Using Nitric Acid
Refining Silver Using Nitric Acid: A Comprehensive Guide. When it comes to refining precious metals, silver refining using nitric acid is a common method that has been utilized for centuries. This process allows for the separation of silver from other base metals and impurities, resulting in a purer form of silver.
The Ultimate Aqua Regia Refiner's Guide | Shor …
Whether you're refining gold using nitric acid, sodium nitrate, or MX3, the procedure is essentially the same and pretty simple and straight forward: Metal is dissolved into solution.
Separating Silver from Gold Using Nitric Acid
This is a short tutorial demonstrating the separation of silver and gold using Nitric Acid. The initial weight of silver/gold mix weighed 41.5 grams. Here is the initial silver gold mix used: Please post your comments and …
Reusing NO2 from nitric acid
distill off NO2 bubble into water to make nitric acid, if less than 68% concentration can boil off water untill it reach's 68% further boiling will boil off your 68% acid, if stronger acid needed for some unknown reason, you would need to add 2 times the amount of sulfuric acid and distill off somewhere greater than 80% maybe stronger up to fuming acids.if doing this check …
Concentrated nitric acid substitute | Gold Refining & Metal …
With nitric acid the gold can be recovered quickly and more efficiently at a cost that is still profitable. If you want to try these other methods, use a small sample batch for a test run. ... 4 Hole Sizes Metal Silver Casting Melting Templates Ingot, for Melting Casting Refining Gold Silver Copper Aluminum Brass Precious Metals DerJingX. $16. ...
Use of Nitric to get rid of base metals | Gold Refining
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. ... I see no reason to use nitric at this point ($$$), when you can leach most base metals with another acid like sulfuric acid, or hydrochloric acid, or even weaker acids like citrus acid or even vinegar ...
silver refining with nitric acid | Gold Refining & Metal …
I submerge my silver concentrate ore in nitric acid and stirr it several times for a period of 24 hours. I then remove the acid and put it through a coffee filter until the acid is clean. I then use NaOH to neutralise the acid to a PH of 6 to presipitate the other metals out of …
nitric turned a dark rust color
In that respect, I'd like to take a shot at this: Try first more 50/50 nitric acid/distilled water. Heat it to 68C for an hour. Let it cool and settle to room temperature. Carefully decant the solution and save it for silver recovery. Repeat this process with concentrated nitric acid. Save the solution for possible palladium.
Urea, its use in refining
At the request of Freechemist, I am starting this thread for the discussion of the use of urea in refining. Please note that the use of excessive nitric acid is wasteful and requires either time consuming multiple evaporations of the acid to drive off the excess nitric acid or the use of urea to consume the excess nitric and drive it from the solution.
Nitric acid | Gold Refining & Metal Extraction Forum
I recently purchased four 2.5 liter bottles of nitric acid that someone listed here on the forum. It turns out that I lived within 5 miles of them. Amazing. Anyway I got a super deal on the acid, 5 gallons of HCL, and other goodies. The nitric acid included a …
How To Refine Gold With Nitric Acid
To refine gold with nitric acid, you will first need to blend the nitric acid with hydrochloric acid to produce aqua regia. Then, you will need to dissolve, filter and retrieve the gold from the substances bonded to it.
35% silver nickels vs nitric acid | Page 2 | Gold Refining
I started with 1100 grams of nickels, then added 50/50 ratio of distilled water and 67% nitric until most of them were dissolved. Then I removed the liquid and added some sterling silver to use up any nitric. Then I removed the sterling and filtered the liquid.
The Ultimate Aqua Regia Refiner's Guide | Shor International
Whether you're refining gold using nitric acid, sodium nitrate, or MX3, the procedure is essentially the same and pretty simple and straight forward: Metal is dissolved into solution. The materials that didn't dissolve (stones, plastic, ceramics, etc.) are separated from the solution by either filtering or decanting the solution into ...
Gold Filled nitric acid saving process | Gold Refining
Well to conserve on nitric acid and to process large batches (12 pounds) i dont go over that usually, use 4 5000 ml conical flask a stopper and a hose in top in which the nitrogen dioxide gas (red gas of death) travels through from the first hose to the second conical flask where the hose is submerged in the water which turns back into nitric ...
making nitric acid | Gold Refining & Metal Extraction Forum
Does your formula require concentrated sulphuric acid? I have been making nitric for awhile now using concentrated sulphuric acid and a saturated solution of sodium nitrate and water. Since I use a fair amount of this acid, my recipe for volume is 2000 ml of distilled water, 3.4 kilograms of sodium nitrate, and 1120 ml of 98% sulphuric acid.
Using Nitric acid to dissolve Brass | Page 2 | Gold Refining …
Using Nitric acid to dissolve Brass. Thread starter Fishnbiker; Start date Mar 12, ... 4 Hole Sizes Metal Silver Casting Melting Templates Ingot, for Melting Casting Refining Gold Silver Copper Aluminum Brass Precious Metals DerJingX. $25.49. UtechSmart USB C Hub, Ethernet Multiport Adapter 6 in 1 USB C to HDMI Dock Compatible for MacBook Pro ...
MX3, A Replacement for Nitric Acid in Aqua Regia | Gold Refining
Hello all, While browsing the internet i stumbled upon a product that claims to be a substitute for Nitric Acid in Aqua Regia. This Chemical is called MX3, but im having trouble determining the actual contents of the white powder that claims to be "A superior, dry, non-hazardous substitute for nitric acid when making aqua regia."
buying vs making nitric acid? most cost effective method? | Gold …
just starting up and trying to decide on buying vs making nitric acid. i found a local supply that sells 2.5l of nitric acid for $85 vs buying 32oz of... Forums. New posts ... for Melting Casting Refining Gold Silver Copper Aluminum Brass Precious Metals DerJingX. $6.99. Mr. Pen- Jewelry Pliers, 3 Pack, Jewelry Making kit, Pliers for Jewelry ...