Waffles SS
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Rhodium(III)Sulfate
Any suggestion or procedure for synthesis Rh2(SO4)3 ??
I found reference that mentioned reaction of sulfuric acid with rhodium metal at 400c lead to red rhodium(III) sulfate but this route need special
equipments.
This is difficult to make rhodium salt from metal.
Anyone has experience on synthesis of this component?
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j_sum1
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What is your source of rhodium?
I presume you are working at a very small scale.
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Waffles SS
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My source of Rhodium is metal.
My scale is 5gr and i want to use Rhodium Sulfate for plating
[Edited on 20-7-2022 by Waffles SS]
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paulll
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Could https://patents.google.com/patent/RU2112063C1/en be of use?
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Waffles SS
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Thanks but i am looking for red Rhodium Sulfate(Rh2SO3) not yellow one.
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Rainwater
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It will be slightly reactive with aqua regia. Maybe use your nugget as an anode? I melt and sell mine. $$$
Most of its salts are very toxic with LD under 200mg per kilo
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Bedlasky
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Rhodium reacts with aqua reagia only at high pressure and temperature.
http://www.ajchem-a.com/article_92164_e9bc6183bdc619dec8940a...
Rhodium is usually dissolved in molten NaHSO4 or KHSO4.
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MidLifeChemist
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PSA - 5 grams is $2,500 USD worth.
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