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Rhodium(III) hydroxide
Identifiers
CAS Number	21656-02-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	62910110;
ECHA InfoCard	100.040.447
EC Number	244-508-2;
PubChem CID	88993;
CompTox Dashboard (EPA)	DTXSID80944256;
	InChI InChI=1S/3H2O.Rh/h3*1H2;/q;;;+3/p-3 Key: KTEDZFORYFITAF-UHFFFAOYSA-K;
	SMILES [OH-].[OH-].[OH-].[Rh+3];
Properties
Chemical formula	H3O3Rh
Molar mass	153.926 g·mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H312, H315, H319, H332, H335, H413
Precautionary statements	P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Rhodium(III) hydroxide is a chemical compound with the formula Rh(OH)₃.

Various compounds of rhodium(III) with hydroxide ligands are known.^[1]

Some double hydroxides called rhodium(III) hydrogarnets are known to exist. They include BaNaRh(OH)₆, Ca₃Rh₂(OH)₁₂, Sr₃Rh₂(OH)₁₂.^[2] and Ba₃[Rh(OH)₆]₂ ⋅ H₂O.^[3]

Ga[Rh(OH)₆(Mo₆O₁₈)](H₂O)₁₆ is a complex molybdate hydroxide.^[4]

References

^ Spiccia, Leone (July 2004). "Homopolynuclear and heteropolynuclear Rh(III) aqua ions – a review". Inorganica Chimica Acta. 357 (10): 2799–2817. doi:10.1016/j.ica.2003.12.036.
^ Cook, Daniel S.; Clarkson, Guy J.; Dawson, Daniel M.; Ashbrook, Sharon E.; Fisher, Janet M.; Thompsett, David; Pickup, David M.; Chadwick, Alan V.; Walton, Richard I. (2018-09-04). "Alkaline-Earth Rhodium Hydroxides: Synthesis, Structures, and Thermal Decomposition to Complex Oxides". Inorganic Chemistry. 57 (17): 11217–11224. doi:10.1021/acs.inorgchem.8b01797. hdl:10023/18311. ISSN 0020-1669. PMID 30106569. S2CID 52004001.
^ Albrecht, Ralf; Bretschneider, Vincent; Doert, Thomas; Ruck, Michael (2021-04-08). "Ba 3 [Rh(OH) 6 ] 2 ⋅ H 2 O – a Precursor to Barium Oxorhodates with One‐dimensional Hydrogen Bonding Systems". Zeitschrift für anorganische und allgemeine Chemie. 647 (18): 1702–1708. doi:10.1002/zaac.202100016.
^ Kaziev, G. Z.; Osminkina, I. V.; Kin'ones, Saul' O.; Bel'skij, V. K.; Zavodnik, V. E. (2002). "Synthesis, thermal analysis, IR spectra, and crystal structure of gallium hexamolybdorhodate(3)". Zhurnal Neorganicheskoj Khimii (in Russian). 47 (1): 18–22. ISSN 0044-457X.

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[1] Spiccia, Leone (July 2004). "Homopolynuclear and heteropolynuclear Rh(III) aqua ions – a review". Inorganica Chimica Acta. 357 (10): 2799–2817. doi:10.1016/j.ica.2003.12.036.

[2] Cook, Daniel S.; Clarkson, Guy J.; Dawson, Daniel M.; Ashbrook, Sharon E.; Fisher, Janet M.; Thompsett, David; Pickup, David M.; Chadwick, Alan V.; Walton, Richard I. (2018-09-04). "Alkaline-Earth Rhodium Hydroxides: Synthesis, Structures, and Thermal Decomposition to Complex Oxides". Inorganic Chemistry. 57 (17): 11217–11224. doi:10.1021/acs.inorgchem.8b01797. hdl:10023/18311. ISSN 0020-1669. PMID 30106569. S2CID 52004001.

[3] Albrecht, Ralf; Bretschneider, Vincent; Doert, Thomas; Ruck, Michael (2021-04-08). "Ba 3 [Rh(OH) 6 ] 2 ⋅ H 2 O – a Precursor to Barium Oxorhodates with One‐dimensional Hydrogen Bonding Systems". Zeitschrift für anorganische und allgemeine Chemie. 647 (18): 1702–1708. doi:10.1002/zaac.202100016.

[4] Kaziev, G. Z.; Osminkina, I. V.; Kin'ones, Saul' O.; Bel'skij, V. K.; Zavodnik, V. E. (2002). "Synthesis, thermal analysis, IR spectra, and crystal structure of gallium hexamolybdorhodate(3)". Zhurnal Neorganicheskoj Khimii (in Russian). 47 (1): 18–22. ISSN 0044-457X.

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