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PRECIOUS METALS

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Joined
Feb 28, 2007
Messages
116
Location
HOLLYWOOD,CA
if any one could conferm ive been trying to refine for a while and finally got 4 gram out of 2 lbs of pins

ive lost alot of gold trying to learn and today finally got some gold yeap wooooow i was happy.

but i realized that when you add the urea stay tune to the bubbles if you wait to long to add the participant you might not be able to retrieve your gold.

can any one confirm or can you add the precipatent when ever you what
 
PM,

Four grams for 2 pounds is a pretty good yield. The best I've seen for pins was slightly more than 3 grams per pound and that was from pins that were in a bag labeled 'Gemini Project', posssibly aerospace grade.

Steve
 
Precious metals,

Are you using the aqua regia (subzero) methods with urea?


oh, about the pins, funny thing, i got some off a guy on ebay a while back for dirt cheap, no one bid on em and i got 2 punds for 30$ but those pins only got me about 1.75 grams of gold per pound, now i see this same guy listing those pins a 60$ to start for one pound! What a jiff! your actually losing money just buying them! I talk to him now and then and i let him know there not the greatest and what they yeild, he didnt listen and listed about 6 more at the same price, needles to say i wont be lookin at those.
 
Precious metals,
I don't think you will loose gold if you don't add the precipitant immediatly after urea...
 
im getting pins for at a great price high yield but im only using acid for 3 day ,the gold comes off then i use aqua regia, works great,

but sometimes i let the acid sit after urea and i cant get the gold out

this is only on cpu with aqua regia i test the acid and theres still gold

but cant get it out, just did 2 pounds of pins and got 3.5 grams
 
but sometimes i let the acid sit after urea and i cant get the gold out
this is only on cpu with aqua regia i test the acid and theres still gold

What is the ph of you mixture?
What did you use to try and drop the gold out?
I know of a way to get your gold back :)
 
Van,

When refering to Reverse Plating the 'cell' is what ever container you do the reverse plating in, the anode is the positive terminal, the cathode is the negative terminal, and the electrolyte is the acid mix in the cell.

Steve
 
Some of those folks forget that gold is 9k - 23k that directly results in lower returns when refined. They think ALL gold is worth 650 or whatever spot is an ounce. Do some multiplication 14k is .583 x weight = your payout or 10k is .416 and so on.
Midas
 
One Karat is a twenty-fourth proportion (1/24).

9 kt would be 9/24= 37.5% Gold
10kt would be 10/24=41.7% Gold
14kt would be 14/24=58.3% Gold
18kt would be 18/24=75% Gold
22kt would be 22/24=91.7% Gold
24kt would be 24/24=100% Gold
 
MIDAS said:
Some of those folks forget that gold is 9k - 23k that directly results in lower returns when refined. They think ALL gold is worth 650 or whatever spot is an ounce. Do some multiplication 14k is .583 x weight = your payout or 10k is .416 and so on.
Midas

That's based on all conditions being correct, and items made after changes in the gold marking regulations, time of which escapes me now, but it was in the late 1900's.

Prior to the change, law allowed for ± ½K for alloy variation, plus ± ½K for soldered items, accounting for solder that may be deviate from fineness for soldered items.

Consider graduation class rings. It was suggested that over a ton of gold was used annually in their manufacturing when they were routinely made of yellow gold. High school class rings were normally 10K gold, but rings from higher learning institutions were to be found in 14K gold.

Go back to the high school rings and consider a couple things. If a ton of gold was stretched, intentionally, by manipulating the karat fineness by substituting copper and silver for gold, considering it's alloyed by weight, not volume, the very heavy gold is replaced by much lighter elements---with a resulting stretch of volume of roughly 10%-----one hell of a lot of class rings in the scheme of things. The manufacturers short changed the buyer, but remained on the edge of legality in doing so.

I refined class rings by the pound and found the average yield to run every so slightly greater than 9K. That, indeed, would get someone's shorts in a knot if they expected a pound yield from a pound of scrap.

Folks like that always made me shake my head. Why would their gold need refining if it was already pure? If it isn't pure, why would they expect a return equal to the starting weight?

Dealing with uninformed people where gold is concerned is a difficult task.

Harold
 
I just perciped my first batch yea baby BUT it is still very black the second batch has a distinct separation of h2o and goooo. Can I go back add water and try the first batch again? or what do you do?
Van
 
Which method are you using to get the gold, one that dissolves the gold into solution or the electrolytic process?
 
If the gold you precipitated is black, it is not pure. It is about 23k. You may want to reprocess it in Aqua Regia to make pure gold.
 
Steve,

Do you precipitate your peroxide/acid mix with SM or do you dilute and filter?
If you do precipitate with SM do you neutralize your acid first?

Thanks,

Bill
 
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