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Author Topic: Ruthenium  (Read 4835 times)

Offline ruthenium

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Ruthenium
« on: 30/01/2004 22:57:23 »

I have a problem about dissolving high-purity ruthenium powder, it is inactive against acids, aqua regia, only dissolves in fused alkalies but explosive....what sould I do?


 

Offline Ylide

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Re: Ruthenium
« Reply #1 on: 31/01/2004 17:56:22 »
If it's already high purity, why would you want to dissolve it?



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Offline ruthenium

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Re: Ruthenium
« Reply #2 on: 03/02/2004 16:31:35 »
I have to make standard solution of ruthenium, comercial ones are not acceptable
 

Offline Ylide

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Re: Ruthenium
« Reply #3 on: 03/02/2004 23:28:18 »
How concentrated does it need to be?  You might get a few ppm just letting some of the powder set in distilled water.





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Offline ruthenium

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Re: Ruthenium
« Reply #4 on: 05/02/2004 14:54:46 »
It should be 1 mg/ml, for spectroscopic determination in some complex compounds.
 

Offline Ylide

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Re: Ruthenium
« Reply #5 on: 05/02/2004 19:34:09 »
Does the solvent matter?  I talked with one of the inorganic chemistry profs in the department, and the only way you're going to get Ruthenium in aqueous solution is by alkaline oxidative fusion.  (NaOH, Na2O2, KClO4...not a very nice mixture)

If organic solvents are ok, you might have some luck with benzene or cetain ethers.  Ruthenium is used quite often in organometallic chemistry, check it out.

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Offline ruthenium

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Re: Ruthenium
« Reply #6 on: 05/02/2004 20:56:35 »
thanks
 

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Re: Ruthenium
« Reply #6 on: 05/02/2004 20:56:35 »

 

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