Rhodium(III) sulfate

Rhodium(III) sulfate

Identifiers
CAS Number	(tetrahydrate): 15274-78-9 N[PubChem]
3D model ( JSmol )	(monohydrate): Interactive image (tetrahydrate): Interactive image
ChemSpider	140097
ECHA InfoCard	100.030.909
PubChem CID	(monohydrate): 91886288 (tetrahydrate): 91886287
CompTox Dashboard (EPA)	DTXSID20890662
InChI (monohydrate): InChI=1S/3H2O4S.H2O.2Rh/c3*1-5(2,3)4;;;/h3*(H2,1,2,3,4);1H2;;/q;;;;2*+3/p-6 Key: MPJHDLITZOASKY-UHFFFAOYSA-H (tetrahydrate): InChI=1S/3H2O4S.4H2O.2Rh/c3*1-5(2,3)4;;;;;;/h3*(H2,1,2,3,4);4*1H2;;/q;;;;;;;2*+3/p-6 Key: JJITWKYISWZJBI-UHFFFAOYSA-H
SMILES (monohydrate): O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Rh+3].[Rh+3] (tetrahydrate): O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Rh+3].[Rh+3]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Rhodium(III) sulfate refers to inorganic compounds of the formula Rh₂(SO₄)₃. It is a red crystalline solid.^[1]

Preparation

The first attempts to produce rhodium(III) sulfate was in 1929 with the reaction of

. The first structural elucidations have been done at 2009 which conformed the existence of the chemical.

Then at 2016, a much efficient production method was reported. This method used rhodium metal and sulfuric acid to make the rhodium(III) sulfate. The two compounds were heated together at 400°C to make the anhydrous compound. It was shown that if it was heated at 475°C instead, it would make the dihydrate.

References

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