Why Red Aqua Regia ??

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spoke27
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Re: Why Red Aqua Regia ??

Post by spoke27 » November 2nd, 2019, 4:12 am

anachronism wrote:
November 1st, 2019, 7:45 pm
g_axelsson wrote:
November 1st, 2019, 4:27 pm
I see that you are from Turkey, it's known for some large chromium deposits so maybe what you have contains chromium which could color the aqua regia that way.

Göran
Mate I wouldn't waste my time.

It wasn't important enough for him back then to report the results after promising to do so. Now he's found the jar after a few years.
I dont Promisi anyone abouth anythink.. when I made that test. I dont have fume hood and sncl2 or any equpment.. Then I went a assay house and they say me dont have Pt.. But they make that in 2 hour but I dont know Pt not dissolve in 2 hour....
So I am write here again only show result.. I will put here soon modern labarotory result from Canda so dont waste your time..

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Re: Why Red Aqua Regia ??

Post by g_axelsson » November 2nd, 2019, 4:40 am

That cube is most probably pyrite, FeS2. The second picture looks like a sulfide, maybe pyrite, maybe something else. It's hard to tell without any details in the picture.

If I think something is a waste of my time, then I wouldn't answer.

Göran
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spoke27
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Re: Why Red Aqua Regia ??

Post by spoke27 » November 2nd, 2019, 5:30 pm

Dear Göran I think You are understand minerals 1 and 2 picture samethink.. I can send many microscope picture here
Firstly we will see a report maybe ICP maybe fire assay result ..

Lets Look our easy test result.. again.
İf it is pyrite Why not disolve in Nitiric acid. for 100 gr metaarial .. I use 250 mL Acid and İt was two time..
yes it is have S Or As Maybe other think Somtink notralize HNO3 maybe.. True ?

And Stannnus Cloride result ? Why have colur? Stannus cloride SNcl2 granule and only HCL I dont Use Metalic or any other think.. it maybe so much senstive..

I dont say That is PGM or That is valuable metals I made test and I am sahre with Peoples..

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Re: Why Red Aqua Regia ??

Post by g_axelsson » November 2nd, 2019, 8:12 pm

I think that stannous chloride might react with the sulfur from the sulfides, the same way you get a brown reaction if there is SO2 dissolved in the solution.

Göran
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spoke27
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Re: Why Red Aqua Regia ??

Post by spoke27 » November 3rd, 2019, 4:16 am

with mineral we cant use stannus cloride cuz many mineral have Sulphure
stennus cloride can be give clolur then other metals.. it is my fault then..

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Re: Why Red Aqua Regia ??

Post by g_axelsson » November 3rd, 2019, 6:25 am

I haven't tested any ore samples with stannous so what I told you above is an educated guess.

What you should do is to take a couple of samples of the metal you suspect, dissolve it and make standard solutions to compare the stannous reaction of your solution. You could also take an ore sample from a known location without precious metals, dissolve it and compare. Just be sure it doesn't contain arsenic, because that mixed with aqua regia creates a gas that can kill you. Several people of the forum have been close to death that we know about.
Arsenopyrite is a silvery white to gray sulfide mineral.

XRF of arsenic can be reported as iridium, so any test with XRF on anything but pure metal that shows high iridium levels should be treated as it contains arsenic.

Göran
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spoke27
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Re: Why Red Aqua Regia ??

Post by spoke27 » November 3rd, 2019, 1:41 pm

I dont Make AR if I make it is wait cold mybe few days..

in this mineral maybe have AS But I roast it 30 min .. Not enough I think.. Anyway we will see soon result..

nitiric Acid solition colur like paladium.. AR colur like platinum.. But it is sulfide mineral..
we will see Soon

Spoke

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Re: Why Red Aqua Regia ??

Post by FrugalRefiner » November 3rd, 2019, 1:51 pm

spoke27 wrote:
November 3rd, 2019, 1:41 pm
in this mineral maybe have AS But I roast it 30 min ..
:shock: Do you understand how dangerous that is?

Dave
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Re: Why Red Aqua Regia ??

Post by spoke27 » November 3rd, 2019, 3:02 pm

yes I Know I rost it outside and dont smelling.. I know how is danger that is..
but I must be say that USA %75 gold coming carlin type gold deposit.. and they are high arsenic mineraltion zone .. wolrd of %5 also coming there..

So we must found safe method.. wich one more danger Cyanide or Arsenic. ?

I was think to process Iodine but.. realy I dont know..

Who know how is processs sulfide mineral.. ?

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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 4th, 2019, 10:16 pm

Sulfide minerals can be roasted at 700C with SO2 absorption facilities, or mixed with H2O2, causing boiling, ending in sulphates

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Re: Why Red Aqua Regia ??

Post by spoke27 » November 9th, 2019, 2:14 pm

H2O2 % ?
I think it is for oxdation so it will oxdition iron Arsenic sulphure ? That will eork for all

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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 9th, 2019, 10:33 pm

After activation with H2O2 (20%, few hours), AR will readily dissolve arsenic, if any, together with noble metals present. Same for precipitation. As can be re-dissolved by nitric acid alone
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Re: Why Red Aqua Regia ??

Post by spoke27 » November 10th, 2019, 3:10 pm

Ty Lino
Can u Check my Understand
it is boil in H2O2 Few Hour..

After I will will make it Ar Or Nitric bath ..
But I have question I will clean H2O2 Or I will add Nitric in soliton ?

Ty Tayfun

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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 10th, 2019, 10:25 pm

Decant H2O2, no need to wash

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Re: Why Red Aqua Regia ??

Post by spoke27 » November 14th, 2019, 6:52 am

Ty Lino i cant found%20 I found % 50 i will try and lets se result

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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 14th, 2019, 10:39 am

Dilute with water - 50% will act very vigorously

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Re: Why Red Aqua Regia ??

Post by butcher » November 14th, 2019, 10:51 am

Be careful the hydrogen peroxide on your skin it boils your skin white with bad deep burns.

Be careful the fumes, dangerous hydrogen sulfide gas can evolve when the sulfides are oxidized.

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Re: Why Red Aqua Regia ??

Post by spoke27 » November 14th, 2019, 4:12 pm

Lino1406 wrote:
November 14th, 2019, 10:39 am
Dilute with water - 50% will act very vigorously
I will 1:1 dilute
After I will boil it few hour (can I eprovate all h2o2 )

and I will Add nitric Acid..

Lets see what is left ..

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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 14th, 2019, 11:39 pm

No need to boil, it boils spontaneously for few hours. As said, the pyrites convert to sulphates. No need to evaporate, decant H2O2 after boiling and let decompose freely

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Re: Why Red Aqua Regia ??

Post by spoke27 » November 16th, 2019, 3:10 pm

Hi I make it two times.
It is starting to boil one time and going like crazy whit white fume after cool down in 30 min
After it is cool and nothing. I decant it and adding Nitric it is work and stop. And many they stay but diffrence some metalics cahane colur balck but nitric dont touch they also..
I second time i roast mineral and H2O2 add it is go crazy after 10 min boil and down again and add nitric acid it is boil and stop after i on the hot sand and it is star work again after cool.. check it same not dissolve

Forget the say Iron was on soltion and.. they swim

I dont say that is percius metal but that is so much hard to disolve with nitric

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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 16th, 2019, 10:36 pm

Check nitric (for Pd, Ag), then continue to AR

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Re: Why Red Aqua Regia ??

Post by spoke27 » November 17th, 2019, 4:14 pm

To day I went to mine where i found mineral when return home sollitin make me a supprise.. mostly disolved maybe little dust have down side..
SO now i understand it is need to time maybe.. but peroxide changed somethink maybe.. when i rosted it is not dissolve minarels same.. what is change

I dont rost and i only peroxdde and after nitric. Acid bath. Peroxside 5 hour nitric 12 hour
.. it is mostly disolved. I willl show picture tmorrow. ..
What is the change i dont understan.. maybe sulphure was work with nitric acid... if i rost it is not dissolve cuz same time i made two barker.. show result one is stay one is gone..

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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 17th, 2019, 10:29 pm

Optimal time for H2O2 - AR cycle 24 hrs

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Re: Why Red Aqua Regia ??

Post by spoke27 » November 18th, 2019, 5:36 pm

Hi
little jar rosted and H2O2 + Nitric acid hot and cold wait
biggest
crushed and h202 + cold nitric 20 hour maybe

I want ask After the H2O2 Any Sulphure or arsenic left in solition ?
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Re: Why Red Aqua Regia ??

Post by Lino1406 » November 18th, 2019, 10:21 pm

When you precipitate values, arsenic, if any, precipitates quickly as black mud, all over the solution body. Sulfur, as said, is now in the form of sulphates, either dissolved or a sediment (e.g. PbSO4).

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