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MX-3 is a dry, crystalline, non-hazardous substitute for nitric acid, when used to create aqua regia. Just as effective as nitric acid but without the hazard or fumes associated with nitric …
The Nitric Acid substitute on Ebay turned out to be Sodium Nitrate crystals.. You just add water. They claim it is a substitute to use in precipitating gold and silver. But since Im not doing that I just shelved it. Anyone ever have experience using sodium nitrate to dissolve anything? Somewhere...
I decided to aqua regia my gold filled without using nitric to dissolve base metals first. - Aqua regia gold filled all but stainless pins dissolved - added 4-5 times as much water and filtered solution-Added smb and let everything settle over night - decanted not filtered into bucket-wash with water twice decant -use boiling water and add to settled metals, goes yellow right …
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1 lb bag. $15.99. MX3-10. 10 lb bag. $129.99. A superior, dry, non-hazardous substitute for nitric acid when making aqua regia. This very dense chemical mixture dissolves instantly, …
8 ozs Nitric acid substitute to be mixed with hydrochloric acid. This is used to dissolve gold for later precipitation. ... Nitric (refining) Acid Substitute 8oz Gold Refining. NURISSUPPLY (1128) 98.4% positive; Seller's other items Seller's other items; Contact seller; US $13.99. Condition: New New. Quantity: 16 available / 14 sold. Buy It Now ...
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The information on the forum is not organized. Sure, I can find information on websites but not on the tutorials category of the forum. Usually these posts are set as sticky …
Since he's collecting the off gases (NOx) of the reaction in the first two, I think he would be best served just decomposing copper nitrate to CuO and NO2 via: Decomposes: 2 Cu(NO3)2 → 2 CuO + 4 NO2 + O2 Nitric Reaction: 3NO2 + H2O → 2HNO3 + NO Of course this requires that he has copper nitrate on hand. Most of us here who dissolve silver and cement …
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Adding the required hydrochloric to this will make "poor mans' AR.-or-Adding the correct amount of sulfuric acid will make nitric acid. Assuming it is sodium nitrate, it should work as advertised. But.....following the instructions will be the same as pre-mixing AR. That means, you'll probably have to deNOx your solution every time.
JSP! Aqua regia gold refining supply kit, 3x 1/2lb bags+ Gold Precipitant +Stannous Chloride with instructions. [kit26-2] - Kit contains 1/2lb pack of nitric acid substitute to be mixed with …
Greetings from another Newbie. My interest here is not strictly about precious metals, but brass. After viewing a few videos on Youtube, I thought to inquire here about using Nitric acid to dissolve brass. The reason for this is hopefully to dissolve/remove a broken fuel jet needle in a carburettor needing rebuild.
AP is slower than nitric is one of the biggest drawbacks I see to it. A second smaller issue is the tendency of strong mixtures of AP (excess heat and/or peroxide) will dissolve some of your gold whereas nitric won't. The dissolved gold is not lost just tied up until the solution gets saturated with dissolved base metals.
If you will use the search bar and search exactly for "nitric acid Canada" If you will find the post from just a few days back and that thread has a few actual products that you can still buy in your country to make nitric acid for refining. There's been countless posts on making your own nitric substitute and some very detailed procedures to ...
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Nitric can be concentrated up to an azeotropic solution of 68% concentration, which we use to make aqua regia for gold and several of the platinum group metals, The 68% solution would need to be diluted for use with silver to around 35% HNO3/H2O. 68% HNO3 that is as concentrated of nitric we need to recover or refine precious metals or dissolve metals …
The information on the forum is not organized. Sure, I can find information on websites but not on the tutorials category of the forum. Usually these posts are set as sticky and are posts that should be made to be fixed with information you know is completely right, not someone that did something and that worked with no good scientific explanation.
Nitric acid substitute to be mixed with hydrochloric acid. This is used to dissolve gold for later precipitation. JSP Nitric (Refining) Acid Substitute To Dissolve Gold 8 Oz.
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. ... First - unlike other acids (HCl sulfuric) the reason nitric acid is restricted (illegal to buy/sell in some places) is because nitric acid is used/needed for making explosives (nitric acid being an oxidizer ...
You will find that most PCB have copper under the solder mask and not gold. There are exceptions however. If you look at the gold contact points on the PCB with a microscope or loupe you can generally see that the lead from the gold contact point is actually a different color and you can see the division between the point and the copper lead underneath …
1: you don't need lab grade gold refining nitric to dissolve base metals. Which makes absolutely no sense by the way.. 2: 200gr of pins will yield about 0,5 grams of gold, if your'e lucky. so a couple of hours/days work and health and environmental risks further for what? 3: Roughly 4ml of nitric is needed for every gram of base metals, equals roughly 800ml of …
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I stopped refining around10 years ago. Started again a couple months ago. My left over nitric from way back. Nitric stored in plastic bottle in plastic bag in box sitting in garage was weak but worked. Nitric stored in glass bottle in holder in box under garage counter was maybe a little weak but worked real well.
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Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. Prev. 1; 2; First Prev 2 of 2 ... I have some from an Ebay buy. It called it Nitric Acid substitute and came in white crystals. Didnt seem to be doing anything to lead so I shelved it. Anyone have luck dissolving ...
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A typical mixture is 3:1 concentrated sulfuric acid to 30% hydrogen peroxide solution; The resulting reaction it called Peroxymonosulfuric acid or Caro's acid H2O2 + H2SO4 ⇌ H2SO5 + H2O However do take note of it's Dangers; 8) Pure Caro's acid is highly explosive. Explosions have been reported at various Universities.
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As I'm using Nitric acid, HCL, Urea and Sodium bisulphite for gold refining process with waste electronic parts. Firstly, I added Nitric acid (30ml for every once of scrap) and HCL (120ml for every once of scrap) and kept it overnight …