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by ChenBeier
Fri Jun 18, 2021 9:28 pm
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

viewforum.php?f=10

Klick new topic above left.
by ChenBeier
Thu Jun 17, 2021 11:15 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

I dont know, I would acid to use the complex. If Meeting a lot of organic Material wie decompose an dprobably you get again PdC. Better is to have the solution of Pd 2+ and add reducer compound. Maybe Magnesium or zinc.
by ChenBeier
Thu Jun 17, 2021 8:17 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

You need Reduction what I told before.
by ChenBeier
Mon Jun 14, 2021 11:42 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

I think in the oven the paper will burn anyway.
by ChenBeier
Mon Jun 14, 2021 11:12 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

But I think this will get only PdO. Above 750 °C it will decompose to Pd. Under nitrogen or Argon atmosphäre you can get it after cooling down.
by ChenBeier
Mon Jun 14, 2021 10:56 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

Good, but what will be the next. You want to get metallic Palladium . Now you have the dimethylglyoxime palladium complex.
by ChenBeier
Sun Jun 13, 2021 7:21 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

The solution has to be neutralized to pH 6 otherwise Palladium get dissolved again if to acidic, then take Graphite rods, maybe use a a copper bar, but then you have copper inside, from carbon its easier to remove.
by ChenBeier
Sun Jun 13, 2021 6:38 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

Not easy, need other chemical, maybe you also cannot buy. Vitamin C ( ascorbic acid) maybe an option.

Why not use electrolysis. Use a carbon cathode or other conductivity material and plate the Palladium on it.
by ChenBeier
Sun Jun 13, 2021 3:12 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

Yes that is then right. Yellow- Orange solution is Pd2+ ions.
After filtering from carbon you can reducer it back to Black Palladium.
by ChenBeier
Sun Jun 13, 2021 1:25 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

That is not the answer of my question. Why is it still Black? I told use aqua Regina. 3HCl/ 1HNO3 . HNO3 alone is to weak. The precipitation with Dimethyldioxime make no sense. You want to obtain Pd and not a Pd complex. Add a reducer like NaBH4, sodiumborhydride, Na2S2O4 sodiumdithionite and others.
by ChenBeier
Fri Jun 11, 2021 11:19 am
Forum: Chemistry forum
Topic: Units of measurement of potential energy
Replies: 2
Views: 45

Re: Units of measurement of potential energy

C = Coulomb = As

Energy Pe has unit J = Joule

So if Pe = k* q1*q2/ r then k = Pe*r/q1*q2 in unit J * m/(As)^2 = J*m/C^2
by ChenBeier
Fri Jun 11, 2021 12:33 am
Forum: Chemistry forum
Topic: Sodium Adsorbtion Ratio (SAR) Reagent Wanted
Replies: 2
Views: 60

Re: Sodium Adsorbtion Ratio (SAR) Reagent Wanted

EDTA solutions are common for determine Calcium, Magnesium and others. Calmagite is not so much known, but a substitute called Eriochrom Black is in use. https://www.google.com/url?q=http://zd2.chem.uni.wroc.pl/files/chemistry/14_ENG.pdf&sa=U&ved=2ahUKEwjR6aj2iI_xAhUsyYUKHawCC-8QFjATegQICBAB...
by ChenBeier
Thu Jun 10, 2021 2:29 pm
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

In which stage you filtered it. After reacting with Aqua Regina? How long was reacting time. Boiling under Reflux and how long?
The solution should be yellow to orange. If its still dirty then still carbon is present. The Filtration was not efficient.
by ChenBeier
Thu Jun 10, 2021 10:31 am
Forum: Chemistry forum
Topic: Help Me!! I havew to refine palladium !
Replies: 24
Views: 203

Re: Help Me!! I havew to refine palladium !

Burning at high temperature get PdO and CO2
Or dissolve in aqua regina get PdCl2 / Pd( NO3)2 filtering the carbon.
by ChenBeier
Thu Jun 10, 2021 3:40 am
Forum: Chemistry forum
Topic: Prediction of precipitation
Replies: 1
Views: 77

Re: Prediction of precipitation

Depends which kind of metal and which anion.