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lazersteve: I'm using your nitric recipe to make poormans nitric. 100ml boiling distilled H2O, Add and stir to disolve, 170 grams Nitrate of Soda (Bonide brand), slowly add to prevent ing, 50ml conct H2SO4 (Rooto Drain Cleaner brand), Chill to precipitate salt. What I'm asking is what can I do with the salt cake that is left after the reaction?
Check out this product readily available in the UK : Hydroponic Ca(NO3)2 It's perfectly suited for making refining grade Nitric Acid very easily. There are several direct and indirect routes it opens to Nitric and has several added bonuses (highly water soluble, 2 nitrate groups per molecule, and Ca ion is easily removed/replaced).
If the carb is made of "die cast" (which is primarily zinc) nitric will destroy the carb as nitric reacts with zinc If the carb is made of cast aluminum the nitric will have little or NO effect on the carb as nitric does not react with aluminum So if it was me - I would test the outside of the carb body with a drop or 2 of nitric to see how it reacts - before using the nitric on the …
I found this explanation from LazerSteve: "When adding the sulfuric acid to Calcium Nitrate the Calcium Sulfate formed is very absorbent and tends to suck up all the liquids. This coupled with the heat of the reaction, causes the resulting nitric acid to go up in vapors as it is formed, or to be absorbed by the Calcium Sulfate.
I have used this "recipe" with success on e-scrap items: HOMEMADE NITRIC ACID Just mix as follows. (makes about 1.5 quarts) (adjust recipe for the volume you need) Take 1 cup of sodium nitrate and grind it to a fine powder in a blender / food processor. (Don't use the food processor for food again. Go get a cheap one at Goodwill!)
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 depending on the base metal and ore. ... and then refine the gold again putting it back into solution and repeating the refining process for ...
Harold 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.
Hi Danny: On sterling silver (92.5%) I use 1.0 milliliter of nitric for 1.0 gram of pure silver and 3.5 ml of nitric for each gram of other metal like copper and etc. (GSP formula) So on 10 grams of sterling at 92.5% silver, I would use 12.0 ml of nitric acid and 12.0 ml of distilled water. Bring it to about 150 to 175 degrees F. and it should totally dissolve in about 5 to 10 …
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. When I use this refining method, I regard the purity of the gold as 22kt, and I alloy it accordingly down to 18kt or 14kt.
An inexpensive leach for gold and PGM's using 7 parts brine to 1 part nitric. Will it work as Dr. Walter C Lashley (deceased) claimed. ... Saturated Saline & Nitric Acid - SSN Leach. ... Start date Jan 20, 2008; Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. A.
I need some nitric acid please... I'm only refining at most 20 grams of recovered gold. I've searched the internet high and low for a solution without finding one, everything seems to be mix this with that add this then mix and then heat.... etc it's all too much for me I don't want to be a chemist or learn chemistry I just want some ***** nitric acid so I can refine 20 grams of …
Gold Refining Processes. Chemical Processes & Chemical Discussion . Easy homemade 90- nitric acid ... I agree with you that there is no need to use fuming nitric acid, because this I cited that it could be dilluted after the process. The main feature of the method, however, is the easy aquisition of glassware and operation, nothing more.. ...
However, as the acid gradually loses its potency to dissolve gold because of this reaction, it is normally produced by mixing the two acids just before use. The mechanism that allows gold to dissolve involves the nitric acid acting as an oxidizing agent to produce trivalent gold ions (Au 3+) which then combine with the chlorine ions to form ...
DR-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.
Beginners Gold Refining Process Forum . alternative to nitric acid. Thread starter dickydonk; Start date Sep 7, 2016; Help Support Gold Refining Forum: ... So my question is when recovering gold from incinerated ic/ flat packs is there any alternative to nitric acid as I can't buy it here in Ireland Thanks . Reply. R. Refining Rick Well-known ...
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 …
If you cannot get or make good nitric acid, then refining silver would be very hard, it is a relatively cheap metal, and a profit can be made by trading it unrefined, refining it without a source of nitric acid would be costly, and I doubt the improvement in the metal, and the cost to get it refined would pay, if you spent more money to refine ...
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. mythen10 ... thank for answer but me I search a way to get the silver as nitrate salt using a nitrate salt without using nitric acid . Reply. BlackLabel Well-known member Supporting Member. Joined May 2, 2019 ...
With evaporation water can be removed from a dilute solution of nitric acid, concentrating the acid, until the azeotropic solution of 70% HNO3 is reached, further evaporation will just vapor of 70% HNO3 until the vessel is dry. you cannot concentrate the acid further by this process, so it is possible to concentrate a solution of 20% HNO3 up to ...
Gold Refining Processes. Chemical Processes & Chemical Discussion . Reusing NO2 from nitric acid. Thread starter kjavanb123; Start date Apr 18, 2009; Help Support Gold Refining Forum: ... I'd guess that as the nitric acid concentration increases in the reservoir, the point in the scrubber where there is no more N2O available to react is higher ...
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. A. AceWithBass New member. Joined ... 70% nitric, use the 50% acid and add 27%, by volume, extra water. For example, you could add 270ml of water to 1000ml of 50% nitric. To make up exactly 1 liter of 50/50 ...
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.
The gold has been raised from 72.14 per cent, to 93.5 per cent., and 82 per cent, of the silver slagged off. This experiment shows that phosphoric acid in conjunction with …
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."
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.
3: Roughly 4ml of nitric is needed for every gram of base metals, equals roughly 800ml of nitric for 200gr of pins. With nitric acid @ 50 dollars per 500 ml you will loose …
@ jado I use the Bisulphate reaction because it is easy to do a small batch with minimal risks - enough for one or two batches of gold or silver. Apart from the Nitric acid (which I use) the waste is sodium or potassium sulphate And an excess of sodium bisulphate added to force the equilibrium reaction to 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 suggestions as usual. I've provided this video as a …
How many grams of gold filled can be processed in 2L of nitric acid? The best answer I have is "enough to be well worth the cost of the nitric acid. It also eliminates many headaches involved with work around/make do methods. If you still want to try other ways you can look into AP, copper ll chloride, poormans nitric acid, home made nitric acid.
In some cases, you are correct. If gold is mixed evenly in the alloy and at a low enough concentration, you can use plain nitric acid to dissolve away impurities. However, if the gold is more pure (or is an external plating), …
