Welcome to the forum.Hello,
how to crash platinum in AquaRegina , I could not find the stages about the start and application in the forum.
Regards
View attachment 54314
Cement the filtrate with iron, zinc, tin or magensium powder
The best way to cement any Precious metal is thick Copper Bus bar or other thick Copper.With these four materials after filtration in the second stage? What is the mixing ratio?
I would only slightly correct that Cd won´t be precipitated by copper. It has similar electrode potential as iron. Mercury will of course cement on copper.The best way to cement any Precious metal is thick Copper Bus bar or other thick Copper.
Usually we recommend Copper, the others will drop any other metals in solution.
Copper will only drop the precious metal and Cadmium and Mercury if it is there.
But for PGMs there has to be strong stirring from the beginning or there will be a layer of PGMs that pacify the Copper.
We need to know more. What else is in the solution regarding base metals such as iron or copper, is gold present ? Any other PGMs ? What was the source of the material ? What is rough concentration of Pt ? Is there any residual nitric acid in the solution ?Hello,
how to crash platinum in AquaRegina , I could not find the stages about the start and application in the forum.
Regards
View attachment 54314
My bad.I would only slightly correct that Cd won´t be precipitated by copper. It has similar electrode potential as iron. Mercury will of course cement on copper.
What are you planning to process?Hello,
how to crash platinum in AquaRegina , I could not find the stages about the start and application in the forum.
Regards
View attachment 54314
First and foremost, drop the spot plate.View attachment 56808
This is the stannous results, no.3 is from my hcl and peroxide batch, which has also leaked in to no.1 I will rinse off and retest and post results of my other solutions as well
And in no.4 is from my aqua regia solution, notice the negative for pgms.
What kind of protective gear are you using?View attachment 56810these are the hcl and peroxide solutions. Test batch is on the right and bulk on the left. I think i accidentally precipitated the red palladium salt. This is because i accidentally added some of the pool shock chlorine stuff I had instead of the hcl I was trying to add. That's what happens when you put both next to eachother. I will do a retest and post results.
The color is not right. Check if crystals dissolve easily in waterView attachment 56810these are the hcl and peroxide solutions. Test batch is on the right and bulk on the
AView attachment 56810these are the hcl and peroxide solutions. Test batch is on the right and bulk on the left. I think i accidentally precipitated the red palladium salt. This is because i accidentally added some of the pool shock chlorine stuff I had instead of the hcl I was trying to add. That's what happens when you put both next to eachother. I will do a retest and post results.
left. I think i accidentally precipitated the red palladium salt. This is because i accidentally added some of the pool shock chlorine stuff I had instead of the hcl I was trying to add. That's what happens when you put both next to eachother. I will do a retest and post results.
I have gotten to the point where I felt confident enough to attempt to precipitate the platinum with ammonium chloride that I had made myself with 10% ammonium hydroxide from ace hardware and hcl added together and evaporated to obtain the white crystals of ammonium chloride.
First off, thank you for your timely and prompt reply.What kind of protective gear are you using?
Have you already studied the safety section and dealing with waste?
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